He can't help but laugh at that, which is probably not what Tony was expecting, but maybe it will work in Steve's favor. If he can get Tony to be interested in the information he's about to give him, that'd be good, absolutely. But the main point is distracting him so Steve's Tony can do whatever he needs to do without getting caught. It's more important that this Tony's attention be on Steve than it is that he like or trust him.

So he rolls with it, shaking his head. "I'm overwhelmed by your hospitality. Were you planning on eating or sleeping at any point, or are you going to just spend all night working?"

He'll sit on the couch, no argument, leaning heavily against the arm and resting his chin in his hand. And when DUM-E rolls up with a glass, he accepts it gingerly and pats the robot without awe or fear. "Is this channel secure? Any chance this conversation is being overheard or recorded?"