We all know that honesty is the best policy but not everyone uses it. Often people tell lies for their own personal gain, to cheat someone or to prank their friends. The problem for these people is that often they give away little signals that when read by the right person can stand out like a saw thumb. Once you learn how to spot the signs, you can become a living walking talking lie detector.
Share these tips with your friends so they can become lie detectors too.