A people file is when you store information about a person in your brain. Your people file expands as you get to know someone better, and remembering specific things the person says about themselves, or when you ask them wonder questions. One of the goals of a people file is to start conversations with someone. You can use the information you know about someone to build on a conversation and therefore build to improve a relationship or friendship.

An example of something you can put in someone's people file is that person's favorite color, or when their birthday is.