Spot The Fake Smile

Gingrichbrendansmialowskigetty

I was about 50-50 on this fascinating video online science test. Try it yourself. Apparently,

when a smile is genuine, the eye cover fold – the fleshy part of the eye between the eyebrow and the eyelid – moves downwards and the end of the eyebrows dip slightly.

I hope that’s not a spoiler.

(Photo: Brendan Smialowski/Getty.)