Whoa, where did you come from? You can't just materialize out of thin air! Didn't your mother ever teach you to knock before you come barging in? I might have been in the shower!
I suppose you want information on how the hands work. Ok, just click on this pop-up menu:
(BTW, does that sound familiar?)If you already know what article you want, you can find it fast using:
So now that you've popped-up, use "prior" or "next" or the Index to pop off somewhere, and the next time you come back don't just barge in, try to be a little more polite!