ELI5: Explain Like I'm 5

Zero-acquaintance personality judgments

When we meet someone for the first time, we often make quick judgments about their personality. This is called zero-acquaintance personality judgment. Think of it like when you meet a new friend at school or at the park. You might think, "This person seems really nice" or "This person seems kind of mean."

Scientists who study personality are interested in how accurate these snap judgments are. They've found that people can make surprisingly accurate personality judgments based on very little information. For example, people can often tell if someone is outgoing or shy just by looking at their picture.

These judgments can be based on a lot of different factors. For example, we might look at someone's facial expressions, body language, or tone of voice. We might also pay attention to their clothing, hairstyle, or other physical attributes. All of these clues can give us a sense of what someone's personality might be like.

Of course, it's important to remember that these snap judgments can be wrong sometimes. Just like you might judge someone based on their appearance and find out later that you were wrong, these initial personality judgments aren't always accurate. That's why it's important to get to know someone over time and not rely solely on our first impressions.