At the moment a bit of a dummy .. G rolls over expressions quietly, when you're not looking (holding a random face for a random time, 30 seconds to a minute at the moment) ..
Hope to do a couple of touchscreen functions (but seems to take some working out) and might see if I can do a basic UI for voice "command" though I'm more aiming at "reaction".
(That's, again if I can work it out, by trial and error, later!)
Arduino CPU isn't very fast and the face takes a moment to load .. Found best is not to focus on the transition, and just see what kind of mood he's in every now and then ....
Apologies for difficult contrast on photos, he's pretty smooth in the silicon flesh. Smiley face.