Bucky watches in the man in the mirror to determine whether he's telling the truth and decides that, yes, Tony had probably been a prisoner at some point. There aren't any questions from him right now. It has nothing to do with his mission. His lips press together and he looks aside at the thought. He doesn't have a mission right now. He might never again. He's not sure that's an entirely happy thought. Being so directionless is killing him.

He slides out of his seat and moves to the pitcher of water sitting on one of the carts and downs three full glasses as quickly as he can manage. It's as much acknowledgement as he's going to get.