I bet all of you who read books know a particular phrase...."to look into someone's eyes".Have you ever realized how much weight this simple line carries??? I have come across many books in which characters use to judge the credibility or the emotional state of a person by just looking into their eyes.I always thought this to be an exaggerated expression.How the hell can someone look into another's eyes and tell if he is lying or not,or if he is teasing you or being serious?? But then once,I decide to test it.And I made a very remarkable discovery.Everyone of us,while talking to a person,avoid looking into their eyes.You have to make a concious effort to look into the eyes of the person with whom you are having the conversation.Otherwise,our involuntary behavior is to look at the person's nose or mouth!!! And amazingly when you make a concious effort and talk with a person while maintaining eye-contact,you tend to know instinctively if he is lying or saying the truth.I guess those big-shot authors know what they are writing about!!!