ELI5: Explain Like I'm 5

Self-concealment

Self-concealment is when someone hides or covers up their true thoughts, feelings, and behaviors from other people. It's like a game of pretend: you act in a way that makes it difficult for people to know the real you. For example, if you really don't want your friends to know you are mad at them, you might act like you're happy and laughing - this is self-concealment.