They have no idea. But they're also not wrong. It's incredibly difficult for a guy this socially awkward already who talks this much to keep his secrets well. Luckily it's easy to just embarrass himself and deal with temporary humiliation if it gets him out of hotter water on fronts he cares about more.

"Oh-! Well, I'm uh. I've been trying to figure out how PINpoints work for one thing. I took one apart and put it back together again and it still works for things like pens and fruit and the like. Haven't got the nerve up to try it on myself yet but i'm pretty sure it's working right."