The Hulk is still braced for an attack from those scientists, so when Iron Man walks up, he rears around with one arm raised, hand in a fist, and ready to strike. The fist relaxes as soon as he talks, and then his arm drops entirely when he says the Hulk's name. Oh.

"Tin Man." He sounds... not annoyed seeing him. That's like being glad. "You're a prisoner too." He squints, information tugging at the back of his brain, and he picks his gaze up to the buildings beyond them. He's still holding the unconscious scientist, who's dangling like a rag doll from under his arm.