It's pretty much the exact opposite of that one guy's reaction, way before. It's just flippant enough that it comes across genuine. He's going to let it go, just walk away and get back to what they're here for, when she goes on, and he turns part way back.

His mouth opens but nothing comes out for a minute. Then, "Right. Sure. I'll... do that or whatever. See ya around."

He starts off, the barest wave behind him.