When I Was Little I decided I really wanted to be able to snap my fingers. It seemed simple enough, but I didn't know how. So I just kept trying. I assigned the problem to my subconcious mind, and spent idle moments moving my fingers in ways that might lead to the correct sequence. I have no idea how long this went on, probably not too long, before I got the hang of it. Snap snap snap snap snap.
Sometimes, if I'm agitated or excited, and not sure what action to take, AND pacing back and forth, that physical memory will surface and I'll start doing it again. Snap snap snap snap snap.