Psychological manipulation is a form of social influence that aims to change the perception as well as behavior of some others through underhanded, deceitful, or abusive techniques. By advancing the interests in the manipulator, often in another’s expense, such methods may be considered exploitative, abusive, devious, and deceitful. Social influence is mostly perceived to be harmless when it respects the suitable of the influenced to take or reject and it is not unduly coercive.