"I don't go looking for trouble, I cause it." From anyone else it could have been ego, but from Natasha it was only matter-of-fact. "Sometimes I fix it." That one was way less often.

It's surprisingly easy to grin back. "Well I could have said it's not more complicated than opening a door, but you seem to have problems with that." She takes him at his word and lets go, veering off to the side to get out of his way. She follows the curve all the way around, ending up on his other side.