His expression darkens for a moment, a shadow flickering over his face, but he recovers quickly enough, stepping back in time with Steve's step forward, not yet giving up his ground. Good as it was to see the guy on his feet after the events of last week, there's a part of him that wants to play it cautious; the risk of infection's high, he's inclined to point out, but he's sure Steve knows that as well as he does, and he's not about to add insult to significant injury.

"A few minutes, and we don't go out of sight of this building," says Bucky after a moment. "Deal?"