Bruce had the distinct feeling that he was interrupting something, but he had already made the situation so awkward he wasn't going to decline their hospitality.
"Uh, yeah," he said and took Pepper's hand in his own to give it a shake. Shaking hands still felt weird. Everything still felt weird though. "I didn't mean to interrupt. I don't even have a reason for coming here. I was just bored." He scratched the back of his head and shot Tony an apologetic look.