Bucky's grim faced posture definitely seems to have put the waiter on edge. It certainly doesn't help that when he looks over at Natasha, she offers him a smile sweet enough to be poisonous.

"Shit, I know who you both are, okay? I used to run with a gang and I got some family still in the game but I don't do that shit anymore. This is a legitimate job. I really like the food."

Well. He's clearly sincere. And just about ready to cut and run, despite that last sentence. Natasha arches a brow and looks over at Bucky, then lifts one shoulder in a shrug. As if to say eh, I'm fine with him if you are.