How easy is it to spot which smiles are real and which are fake?

Difficulty
Time Required	Average (6-10 days)
Prerequisites	None
Material Availability	Readily available
Cost	Very Low (under $20)
Safety	No issues

Abstract

If someone is smiling, it means they're happy, right? Well, not always. Sometimes people smile to be polite, or because they want to "appear" happy or friendly for social reasons. How easy is it to spot which smiles are genuine and which are fake? Try this science fair project to find out!

Objective

Discover whether people can accurately determine if a smile is genuine or fake.

Credits

Sandra Slutz, PhD, Science Buddies

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