"Alchemy, looks like." He's gotten good at picking out what's what, and since Tom works for an energy-source engineering firm, it's not weird that he's able to. "I've come to learn that's like science magic." There's a bemused tone to his voice, there.

The doors ping on their selected floor and Bruce walks out casually, drawing no suspicion - but then remembers Tom isn't supposed to be a secret agent, and does kind of an obviously-trying-to-be-sneaky-and-failing lean and peer down one hall. Smooth.

... Anyway. "I hope half these rooms are empty."

Because seriously, imagine breaking into one and having it be occupied.