Sans' hands go down and he blinks. Well. Technically, there's some truth to that. He's not sure if Gaster was confused at the figure of speech, or happened to notice the way Sans was carrying himself. ... Probably the former.

That's a joke, doc.

Whether or not Gaster wanted to bring up the latter was up to him.

Anyway. Sans shrugs, still grinning as he signs.

So... what, you're asking if you can hear it now? I don't mind playing.