This is the first moment he's felt fairly confident and comfortable since... He's not sure how long. Time is one of those things that's gone very fuzzy. This is who he is, what he's for. Find an inconvenient task that he can probably muddle his way through and have him try it. Bonus points if it's messy and mechanical and will keep him out of the way for a bit. It's hard to be frightened of nothing in particular when everything seems so reasonable for once. "I--I'm coming," he says evenly, and heads down in turn. He doesn't know the machine specifically, it's true, but he's far more confident he can figure it out than he was. "Is, um, has it been having problems, or..."