Reverse psychology

Reverse psychology is a technique involving the advocacy of a belief or behavior that is opposite to the one desired, with the expectation that this approach will encourage the subject of the persuasion to do what actually is desired: the opposite of what is suggested. This technique relies on the psychological phenomenon of reactance, in which a person has a negative emotional reaction to being persuaded, and thus chooses the option which is being advocated against. The one being manipulated is usually unaware of what is really going on.