In this video expert lie-spotter Pam Meyer shares both scientific research and her personal insights on the issue of deception, including why we lie and how to spot a lie. Studies claim that on any given day the average person is lied to between 10 – 100 times, and that strangers lie 3 times within the first 10 minutes of meeting each other. Meyer explains that lying is a cooperative act, and that the power of a lie stems from our willingness to believe it.