Can YOU spot a fake smile?

You have to check out this psychological test, it's pretty cool. You are shown 20 different quick videos of 20 different people smiling and you have to decide which person is smiling genuinely or not.

It's not as easy as you might think. I got 14/20 right. The worst part for me was you can only play it once and I was second guessing myself. You need to definitely check it out. It gives you an explanation after the test when it tells you your results.

Here's the link: Spot the Fake Smile