Yeah that's pretty tricky, because as you said, there are no lines when you draw. The trick to this is to make a figure-eight and manage to start and end at the same point, and you must do this on the fly. No, there won't be any lines, and yes, Link may keep moving around as you draw. However, if you do it right, a glowing hourglass will appear on the screen and time will stop. I do hope this helps!