The Presurfer points at SPOT THE FAKE SMILE, an experiment designed to test whether you can spot the difference between a fake smile and a real one.

I got 16 out of 20 right; not bad at all. The 4 I got wrong were among the 6 or so where I was in doubt, so I’ve still got something to learn. Reading facial expressions is something I used to be quite bad at, so it’s nice to know I’m learning…