Hythlodaeus offers the vendor a brief apologetic smile and a bow as they leave. While he is mostly shameless, it's not as though he's inconsiderate of others.

Hades's words almost make him purse his lips briefly, but almost immediately he finds a way to turn it to his advantage... if it can be called that.

"My, my! Simply because it takes you quite a bit of effort to make me blush does not mean I am incapable of it."