15/20. I got better as it went on, but it was the eyes and their movement that I started paying most attention to. I think the genuine smiles were caused by a joke, and many of hte genuine people seemed to move like they were laughing.
I got 15/20, which surprised me. I went back and looked at the ones I missed and realized I missed them because bigger movements were dragging in more of my attention than relevant ones. F'rinstance, one guy's eyes didn't even twitch, but his head swayed around a bit while he smiled and that seemed more real to me than the…