The psychology and neuroscience of hypocrisy, contempt, social masks, body language and the mistaken belief that people cannot see through you.

There is something quite extraordinary about people who spend their time criticising everyone around them, putting people down, gossiping behind their backs and behaving as though they are intellectually, socially or morally superior.

Then, when they meet those same people, suddenly they become sweetness and light. Smiles, compliments, friendliness, affectionate greetings and apparently genuine interest.

And they seem to believe nobody notices the difference.

But people are not nearly as oblivious as some individuals imagine. We observe patterns. We remember conversations. We notice inconsistencies between what someone says privately and how they behave publicly. We pay attention to how they treat people when those people are not present.

The real insult to people’s intelligence is not having a private opinion. It is behaving as though everyone else is too stupid to recognise a repeated pattern of hypocrisy.

There are some fascinating psychological explanations for why people behave this way, why they may believe they are getting away with it, and why their behaviour can eventually undermine their credibility.

1. The superiority complex: why putting other people down can make someone feel bigger

Some people seem to need an audience for their opinions about everybody else’s shortcomings.

Someone is too fat, too thin, too stupid, too successful, too unsuccessful, too loud, too quiet, too ambitious or not ambitious enough. Whatever somebody does, there is always something to criticise.

Psychologically, this can sometimes reflect a need for social comparison and self-enhancement.

Social comparison is a normal human tendency. We evaluate ourselves partly by comparing ourselves with other people. But when someone repeatedly needs to make others appear inferior to feel superior, comparison can become a destructive social habit.

Putting people down may temporarily provide a sense of importance, status or control.

The irony is that constantly needing to demonstrate superiority can reveal how dependent a person’s self-esteem is on comparison.

Someone who feels secure in their own abilities does not need to make everyone else look incompetent to establish their own worth.

However, frequent criticism alone does not establish insecurity. Some people gossip because it is socially reinforced, because they have learned it in their environment or because they habitually focus on other people’s faults.

The revealing issue is the repeated pattern and the way it affects relationships.

2. Contempt: when criticism becomes a way of treating people as inferior

There is an important psychological difference between disagreeing with somebody and treating them with contempt.

Disagreement addresses an opinion, decision or behaviour.

Contempt communicates that the other person is beneath consideration.

It can appear in dismissive remarks, mocking laughter, sneering, humiliating jokes, eye-rolling or the assumption that somebody else’s thoughts are not worth listening to.

Contempt is particularly damaging in relationships because it attacks a person’s dignity rather than simply challenging their position.

When someone habitually talks about other people with ridicule or disdain, it can create a social environment where everyone becomes a potential target.

And people notice how someone speaks about absent friends, colleagues and relatives. They may reasonably wonder whether they are being discussed in the same way when they leave the room.

That does not mean every critical conversation is contemptuous. Sometimes people need to discuss genuine problems or harmful behaviour. The distinction lies in whether the discussion is intended to understand and address an issue or to degrade someone.

3. The two-faced social mask: sweetness in public, hostility in private

Why would someone criticise a person mercilessly in private and then behave as though they adore them in public?

There are several possible explanations.

Impression management: They want to control how other people perceive them. Being charming, helpful and affectionate in public may protect their reputation, maintain friendships or help them gain acceptance.

Conflict avoidance: They may dislike confrontation and prefer to express their real frustrations to an audience they believe is safe, rather than addressing the person concerned.

Social advantage: They may be pleasant to people whose approval, connections or influence they value, while being dismissive towards people they perceive as less useful.

Compartmentalisation: They may separate their private opinions from their public behaviour and not experience the contradiction as particularly troubling.

These explanations are not interchangeable, and we cannot know someone’s motives simply from observing a smile or a change in tone.

But when the same person repeatedly presents a friendly public image while privately humiliating, undermining or ridiculing others, the discrepancy becomes relevant to trust.

A pleasant face is not proof of a pleasant attitude. Equally, a reserved expression is not proof of hostility.

It is the pattern of conduct, not one facial expression, that matters.

4. The neuroscience of reading people: why we notice inconsistencies

Human beings are highly attentive to social information.

We monitor facial expressions, tone of voice, timing, gestures, conversational context and changes in behaviour. Our brains use this information to make rapid judgements about other people’s intentions and emotional states.

The amygdala and wider social-processing networks contribute to recognising emotionally significant cues, while other brain systems help interpret context, memories and expectations.

This ability is useful, but it is not infallible.

We can notice a genuine inconsistency between someone’s words and actions, but we can also misread nervousness as dishonesty, tiredness as indifference or a naturally reserved manner as arrogance.

Body language is especially easy to overinterpret. There is no single reliable gesture, facial expression or posture that proves someone is lying, being hypocritical or concealing hostility.

The strongest evidence is usually behavioural and contextual:

• What does the person actually say about others when they are absent?
• Do they repeatedly contradict their own statements?
• Do they treat people differently depending on who is watching?
• Do their actions match the promises they make?
• Do they take responsibility when somebody challenges an inconsistency?

We may be remarkably good at noticing that something feels inconsistent, but establishing exactly what that inconsistency means requires more than intuition.

5. Gossip and backstabbing: the social psychology of talking behind someone’s back

Gossip is not always malicious. People exchange information about others for many reasons, including social bonding, warning one another about problems and understanding group dynamics.

But gossip can become harmful when it repeatedly involves humiliation, exaggeration, speculation, private disclosures or attempts to damage somebody’s reputation.

When people gossip maliciously, they may create an impression of intimacy with their audience. Sharing a secret or a negative opinion can make listeners feel that they belong to an exclusive circle.

Unfortunately, that sense of closeness can be built at somebody else’s expense.

And there is a predictable problem with this arrangement.

If somebody repeatedly tells you unpleasant things about other people, you have reason to consider whether they might also be sharing unpleasant things about you with someone else.

That is not proof they are doing so. It is a sensible reason to pay attention to their consistency, discretion and respect for other people’s privacy.

There is a difference between a friend who raises a genuine concern about someone and a person who seems unable to have a conversation without attacking an absent third party.

6. Why they may believe nobody sees through them

One interesting possibility is that some people confuse their own ability to manage appearances with other people’s inability to recognise patterns.

They may believe that if they smile convincingly, offer a compliment or behave affectionately, everyone will accept the performance.

But relationships are not based on isolated encounters alone. People build impressions through repeated experiences, shared conversations and observations over time.

A person might be charming at a dinner party, but if several guests have separately experienced their private hostility, that charm may not restore the trust they have lost.

There can also be a difference between being liked and being trusted.

Someone may be socially popular, entertaining or outwardly generous while people remain cautious about confiding in them.

Others may continue being polite because they dislike confrontation, wish to avoid gossip or have no desire to become involved in a dispute.

Silence is not necessarily agreement, and politeness is not necessarily trust.

One of the mistakes a socially manipulative person might make is interpreting other people’s courtesy as evidence that their behaviour has gone unnoticed.

But it is equally important not to assume that everyone shares the same interpretation. Different people have different experiences, and private criticism can sometimes be exaggerated or unfair.

The only reliable way to understand a situation is to distinguish what has been observed directly from what has been reported or inferred.

7. The insult to intelligence: when people assume you cannot join the dots

Perhaps the most irritating part of this behaviour is the assumption that everybody else is incapable of recognising an obvious contradiction.

You hear the criticism. You witness the exaggerated friendliness. You notice how quickly the conversation changes when a particular person walks into the room.

You may also notice that the person who was supposedly so wonderful five minutes ago becomes the subject of ridicule as soon as they leave.

Over time, you begin to recognise a pattern.

And this is where the real issue becomes one of credibility.

When somebody’s private behaviour repeatedly contradicts their public presentation, people may begin to question not only what they say about others, but also what they say about themselves.

Are they genuinely kind, or simply being agreeable when it suits them?

Are they genuinely interested in friendship, or interested in maintaining a particular social image?

Are their compliments sincere, or are they simply part of how they manage social situations?

We cannot answer those questions from appearances alone. But we can reasonably decide how much trust to place in somebody whose behaviour repeatedly fails to match their words.

You don’t have to announce that you’ve seen through someone to make an informed decision about how much access they have to your life.

8. The psychological cost of living around constant criticism

When somebody regularly puts others down, the atmosphere around them can become uncomfortable even for people who are not the immediate target.

Friends may become guarded. Colleagues may avoid sharing information. Family members may hesitate to express their opinions.

People can begin monitoring what they say because they suspect their words might become the next subject of gossip.

If criticism is directed at you personally, the effect can be particularly exhausting.

You may find yourself wondering what has been said about you, whether people believe it and whether you need to defend yourself against conversations you have never heard.

It is worth remembering that you cannot control every private conversation or every opinion somebody forms about you.

Trying to correct every rumour or expose every contradiction can keep you trapped in the very social dynamic you want to escape.

A more useful response is often to be selective about what you share, maintain relationships with people who demonstrate discretion and address specific harmful behaviour when necessary.

9. How emotionally intelligent people respond

Emotional intelligence does not mean pretending not to notice hypocrisy. Nor does it require tolerating disrespect in the name of keeping the peace.

It means recognising what you know, what you suspect and what you cannot establish, then choosing a response that protects your own wellbeing and integrity.

For example:

• Observe rather than speculate. Focus on repeated, identifiable behaviour instead of trying to diagnose someone’s personality.
• Be careful with private information. You do not have to confide in someone whose discretion you have reason to question.
• Avoid becoming part of the gossip cycle. You can refuse to participate without defending everyone or confronting every conversation.
• Set boundaries. If someone repeatedly insults or humiliates others in your presence, you can say that you do not want to participate in that discussion.
• Judge consistency over charm. Give greater weight to a person’s repeated actions than to occasional displays of friendliness.

You can be civil without being intimate. You can be friendly without being trusting. And you can decide that somebody is not a suitable friend without needing to persuade an entire social circle to agree with you.

The bottom line: people notice more than you think

There is a difference between being socially intelligent and assuming you are socially invisible.

People may not challenge you. They may not expose your contradictions. They may even continue smiling and making conversation.

But that does not establish that they believe everything you say, approve of your behaviour or trust you with their lives.

The real measure of someone’s character is not how charmingly they behave when they want to be liked. It is how consistently they treat people, particularly when there is nothing to gain from being kind.

Linda CJ Turner | Neuroscience, Emotional Intelligence & Relationships