A small pause. Raising both brows as he leans forward a tiny bit, glancing over his shoulder to look at the pages. Humming— Clearly curious. But, for now, he's getting back to his task. ".... Would you like to elaborate on that? What exactly is it you're refreshing on? Any reason why?"
"oh, just some mechanics manuals. You can't expect to remember everything, especially after spending decades without using the knowledge..." He passes a page, unbothered.