That's what we call it in my family. I've done it ever since I can remember. (I theorize that my string playing started with the corners of the "blankie" I had as a kid, but who knows?) I lie down, usually on my bed, with a plain, white t-shirt on my chest to provide a neutral background. I take a length of string, usually shoestring, and twirl it with my hands. Frankly, I don't really know what actions I perform with the string in my hands, because by the time I'm doing it my mind is…