Avatar Posted by kablanka (http://www.bbc.co.uk)
Category: Miscellaneous | Tags: test fake smile muscle eyes
Most people are surprisingly bad at spotting fake smiles. One possible explanation for this is that it may be easier for people to get along if they don't always know what others are really feeling. Although fake smiles often look very similar to genuine smiles, they are actually slightly different, because they are brought about by different muscles, which are controlled by different parts of the brain.
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