Wolfgang opens their mouth, closes it, repeats the process a few times. They have a hard time telling the difference between when people — let's be real, men — are being nice to them and when they have an ulterior motive. It's late, they're really not sure they have the fortitude to sit there and be hit on, if that's what's going on here.
... but they're really hungry.
Their fingers intertwine, hands wringing gently. “I, um... anything... no cheese.” They've been in the awkward position where someone trying to be nice brought them a cheeseburger or a ham sandwich. Wolfgang is pretty sure that under the circumstances they're technically allowed to eat it but it always makes them feel so guilty.