Detecting a lie

POSTED: 09:25 AM PST Dec 27, 2012    UPDATED: 02:49 PM PST Jan 18, 2013 

Lance Armstrong told the world Thursday evening that he used performance-enhancing drugs to win seven Tour de France. He said during the interview "I viewed this situation as one big lie that I repeated a lot of times." Have you ever wondered how to detect a lie? Use these helpful tips to find out how.