Confronting habitual liars with a firm, gentle approach, maintaining a great deal of patience, expressing ways in which this behavior can negatively affect a person's life, and encouraging professional help are some ways for dealing with habitual liars. Pathological liars tell lies for little personal gain.
When confronting a habitual liar, carefully plan what to say. Breaking into an outrage does not improve the situation. Maintain a firm yet gentle approach when discussing his behavior. While talking to the individual, present proof of situations when he has lied. It is helpful to relate problems and situations where lying has affected that person. Compulsive lying is treated as a mental disorder. Encouraging liars to seek the assistance of a mental health professional may help to curtail the behavior.