Sans winks, which is not exactly how solid bone is supposed to maneuver, but sometimes you just have to take a good look at physics and tell it to shove its laws down a Klein bottle.

The poor sucker looks pretty nervous. He's used to getting that reaction. From time to time. It kinda varies. Hey, look now, he's just a normal skeleton, no need to get worked up, right?

"C'mon, pal." Don't leave him hanging, that's just rude. "No worries. I don't bite."