Your personality consists of all the ways you behave that are predictable (which could include being unpredictable). Your personality is what other people expect of you after they’ve known you for a while; it’s the “face” you present to the world, made up of all your usual behaviors. You may be moody or cheerful, determined or indecisive, sociable or private, or some combination of these qualities (and many more, most likely). What’s more, you may express contradictory qualities without even being aware of them.
It’s difficult to recognize and understand your own personality. It would be like trying to draw or describe your own face if you’d never seen it. You know your personality is there, you know it has definite characteristics, and you know that people respond to it in certain ways. But you can’t quite get a complete picture of it. You’ve probably realized that your personality is bigger, deeper, and more complex than you’re usually aware of.