[limbicsystem]

I second this. I've just spent the summer putting together an online experiment for a student along similar lines:

https://www.doesmyrobotunderstand.me/ (please, feel free! We need subjects...)

I wish I'd known about the Javascript face analysis beforehand! And also how hard it would be to learn Javascript ;) And how to do that cool embedded video thing.

[lkbm]

The immediate feedback about how I did is nice, but also may pollute the data in a way. Once I got it right, I new to retry a very similar expression for the next 1-2 tries. But then, most people might actually know how to make human expressions naturally. Personally, I appreciated this as a tool to help me learn how to human. :-)