Alter ego

Alter ego is like having two different sides of you. It's like having a different character that you can show to different people. For example, when you go to school you might act one way, but when you are with your friends you might act a different way. Each side of you can have a different name or nickname. So, if your alter ego were called, "John" then you would be "John" when you act a certain way and "Your Regular Self" when you are your usual self.