Can you really tell if a kid is lying? After watching this interesting podcast from TEDTalks I have come to the conclusion that I am a terrible lie detecter like most people are. The presentation is hosted by a developmental researcher named Kang Lee, who has been studying for the past twenty years how kids learn to lie. On the video he contradicted three common beliefs we still have about children, one of them is that most adults think they can detect easily children's lies. Moreover, Lee talked about a guessing game he had made with kids from all over the world, in which children had to guess numbers on the cards and they were not allowed to peek, however in the middle of the game the kids were left alone and when they were asked if they had peeked at the cards, most of them lied. Furthermore, Kang showed a video of two kids who played the guessing game and asked the audience which of the kids was lying. The interesting thing was that everybody answered the kid number 1, even I answered the same thing, but to our surprise, the liar was the kid number 2. Additionally, Mr Lee also presented a new technology that not only reveals hidden emotions related to lies, but detects people's lies at 80%. Anyway, children are pretty good liars and if you think you can tell when they're lying, think twice.