Sleight of Mouth: The Magic of Conversational Belief ChangeSleight of Mouth is about the magic of words and language. Language is one of the key representational systems from which we build our mental models of the world, and has a tremendous influence upon how we perceive and respond to the world around us. As Sigmund Freud pointed out, "Words and magic were in the beginning one and the same thing." The right words at the right time can be uplifting, changing the course of someone's life for the better;