How to Spot a Fake Smile

Check out this video test on the BBC website. You are presented with 20 short video clips of smiles. Your goal is to identify which of these are genuine and which are fake. Take the test first, and see if you can identify the clues that give away the fake smile or conversely show that a smile is genuine. I'll tell you the answer in a later post. http://www.bbc.co.uk/science/humanbody/mind/surveys/smiles/index.shtml