[ Look, Bruce had to say something so he wouldn't look like a complete idiot, just standing there gawking at Spock. Pretty sure that would be a little suspicious too, so if he has to ask a question Spock has answered ten times over, it's still better than him blurting out 'holy fucking shit you're him!' as if that just makes perfect sense. ]

Ah— Fair enough. Well, look around all you want. Uh... [ And he's stepping closer. God, they're so close. Should he offer a hand for a shake? Probably not. ] I'm Bruce Banner. Chief Science Officer on board. If I can answer any questions or help you with anything, I'm at your disposal.