But you shouldn't worry if you don't have these qualities. Charisma used to be thought of as innate, but today there is growing evidence that it can be lerned. People with an infectionus personality influence other to copy their posture, body language, and facial expressions.Wiseman says that when you come upon someone who has charisma,you mimic his or her posture and facial expression without realizing it. This is called mirroring, and it works because to dome extent, people's behavior inlfluences their emotion. Wiseman adds that you're unaware you're picking up the othet person's gestures, but you know it make you fell good. He cites the example of smiling back at someone who has smiled at you