Bruce had quickly gotten lost within the labs. The station he had chosen for himself (one of the empty ones, of course) was now covered in papers and notes. He unconsciously hid what he was really doing behind seemingly basic equations and coding even though nobody who walked through even bothered to look at his work station. He wasn't sure if that was because of Tony, or because they didn't care.
However, this latest problem was giving him a headache. Every time he tried to work the problem, it would give him a different end answer and that wouldn't do. If he was going to test himself (the Other Guy), he wanted it perfect. It had to be perfect.
He took the notes he needed and went to the elevator. he stared at the buttons before sighing and just saying, "Take me to Tony." Sure enough, whatever AI system Tony had responded and and the elevator moved.
He was surprised to get off at the gym until he noticed not only Tony, but Clint as well. He caught the tail end of Tony's explanation and shook his head.
"I think he should train you, Tony. You seem like the archer type." Really, what Bruce wanted to say, was that Tony could use any offense/defense training available -- just in case the suit couldn't be used in a situation. As much as he wanted to, he doubted his alternate personality could save Tony every single time.