Here are a few things about human psychology that almost nobody knows:

• The halo effect: This is a cognitive bias in which our overall impression of a person influences how we perceive their other qualities. For example, if we think someone is attractive, we’re more likely to think they’re also intelligent and trustworthy.
• The fundamental attribution error: This is the tendency to overestimate the importance of personality factors and underestimate the importance of situational factors when explaining other people’s behavior. For example, if someone cuts us off in traffic, we’re more likely to assume they’re a bad driver than that they’re just having a bad day.
• The foot-in-the-door technique: This is a persuasion technique in which a person is more likely to agree to a larger request after first agreeing to a smaller request. For example, a salesperson might start by asking you to sign up for a free trial of their product. Once you’ve agreed to that, they’re more likely to ask you to buy the product outright.
• Groupthink: This is a phenomenon that occurs when a group of people make decisions that are not in the best interests of the group because they’re so focused on reaching a consensus. For example, a group of executives might make a decision to launch a new product that they know is risky, because they’re all afraid of being seen as the dissenting voice.
• The bystander effect: This is the tendency for people to be less likely to help someone in distress when there are other people around. For example, if you see someone fall and hurt themselves in a crowded area, you’re less likely to help them than if you were the only person around.

These are just a few of the many interesting things about human psychology that most people don’t know.