There are a lot of different ways to tell when someone’s lying. Body language, emotional gestures and even micro-expressions can all be dead giveaways – but in the age of social networking – it’s becoming increasingly difficult to tell who’s being truthful and who’s feeding you a line. So how do you do it? The key is in adjusting your strategy and looking out for some red flags, like the fact that over half of the fake profiles on Facebook list sexual orientation as “interested in both men and women.” For more tactics on spotting a liar online check out the video.