[The flush is easily spotted, and Regis laughs.]

Relax, I don't think anyone else is watching you too closely. [And if Regis were not so finely attuned to the minutia of facial expressions he might not have noticed it, either, but he is fond of Cullen in his way and for him, the man might well have been shouting it across the room.]

You haven't attended many formal functions? I'm somewhat surprised.