[Quentin didn't expect to be spoken to so he's a little startled, looking like a deer in the headlights for a moment, but smooths it over with a genuine smile. He likes people, generally, despite his shyness, and he has really only spoken to the people he knows tonight.]

Yes, sir, it seems like they went all out.

[He thinks it looks very swanky and nice honestly, but he actually feels more comfortable as the help than he would as a guest instead. Swanky is not his style. His eyebrows lift at that, and while Q is a terrible liar most of the time, he is very good at hiding his thoughts when he's put on the spot.]

Service workers who run in the same circles often do.

[He isn't great at making eye contact but he looks at the man.]

It's cool you noticed though, a lot of people don't at these things. [An innocent enough statement, if he wasn't probing similarly.]