[Steve freezes when Tony does, surprised by how still the other man gets at a gesture that should be familiar and easy. It has the opposite effect he intends--he wants to reassure Tony, but the hand seems to upset him. Steve isn't sure what to do until Tony suddenly pulls ahead and starts leading the way down the hall.

He catches up easily enough, falling into step with Tony when he's called.]

It doesn't matter if you're a different person than the man I know. You're entitled to your own reasons for being here, but that doesn't make you any more selfish than anyone else.

And you're helping.

[Which means he isn't selfish, clearly.]