Hamlet's behavior and actions can all be described as confused. He doesn't know what to think, how to act, or what to do. The ghost of his father has told him to get revenge for his murder--to kill his uncle for the crime. Hamlet doesn't know whether to believe the ghost or not. He also is struggling internally because he doesn't even know if he wants to live or not. He decides to act "crazy" in order to get more information, but even his crazy act is confused and inconsistent.
