It put Tony at ease to see Steve calm down considerably and fall back into his typical attitude. Thank God, because Tony was definitely not the most stable of their group, and couldn't hold anyone up for the life of him, much less himself. He smiled when Steve laughed, "I'll break you of your old-man habits, Rogers, never you worry."
He took into consideration his suggestion on the Aliens. "That'd be nice, but I wouldn't rely on it. Not that I hope they're still here but, you know, I'll look into everything I can."