"Ah." He nods, committing the feel to memory, and sincerely impressed that the elevator has braille. He's an even faster tactile learner, and he'll have his numbers down quickly enough. A building with four floors is not unheard of, so he's not surprised by the number, but he does have his own strange fear of heights. The enclosed elevator suddenly makes him feel safer, compared to open stairs.

"I should try to lead when we come back. I'll learn faster." At the sound of the doors opening, his attention perks as he takes in any new sounds.