He was in the process of thinking of a response--asking a question, most likely--when he was struck again, though not so hard as before. Still, given it was the same spot, it did sting a bit.

His gaze no longer focused on Steve's face, he slowly turned his head to locate the one who hit him, and his eyes landed first on the magazine and then on Stark's face. The expression on his face was slightly irritated, maybe, but nowhere near as murderous or full of rage as it had been.