Introduction Telling a convincing and bold lie to another person involves very strong emotions for some. The emotions involved in lying such as guilt, nervousness, fear of being caught, excitement or pleasure in getting away with lying and attempts to hide these emotions can indeed be the seeds of destruction for a deceiving person. Attempts to hide the strong emotions felt are what betray the liar through nonverbal behavior, especially facial expressions. Research has shown that many people can be very capable of telling a lie through speech, but are not aware of their involuntary facial actions, which can cause losses in the form of facial expressions (FACIAL EXPRESSIONS AND EMOTIONS). Facial expressions or deception cues relied upon include gaze aversion, pupil dilation, smiles, general facial pleasantness, and the more subtle form of facial discharge called microexpressions. The frequency with which these cues are relied upon has been found to be independent of whether or not there is actual evidence that these facial characteristics are actual indicators of deception. This article will discuss the stereotypical cues that professional lie detectors (i.e., police officers, customs officers, and detectives) and lay people (i.e., the general public) rely on to detect deception, as well as the facial cues that are actually good indicators of deception. .In general the face contains two messages, what the liar wants you to see, his macro expressions, and what the liar is trying to hide which can be revealed through his facial expressions. Furthermore, the face tells us what emotion the person is feeling, how strongly he feels this emotion and, according to EKMAN, if two emotions are b...... in the center of the card ......88-105 .Ekman , P. and O'Sullivan, M. (1991). Who can catch a liar? American Psychologist, 46, 913-920.Vrij, A., Edward, K., & Bull, R. (2001). Stereotypical verbal and nonverbal responses while deceiving others. Personality and Social Psychology Bulletin, 27, 899-909. Heilveil, I. (1976). Deception and pupil size. Journal of Clinical Psychology, 32, 675-676.Ekman, P. (1999). Facial expressions. In T. Dalgleish and M. Power (Eds.), Handbook of Cognition and Emotion (pp. 301-320). Ekman, P. (2009). Telling lies: Evidence of deception in the marketplace, politics, and marriage. New York, New York: W. W. Norton & Company Inc. Pease, A., & Pease, B. (2004). The definitive book on body language. New York, New York: Bantam Dell.Vrij, A. (2nd ed.). (2008). Identifying lies and deception: pitfalls and opportunities. West Sussex, England: John Wiley & Sons Ltd.