You don’t need to look down for this. You look at the windows that you want to move/interact with, which are presumably in front of you (not down below), and th

You don’t need to look down for this. You look at the windows that you want to move/interact with, which are presumably in front of you (not down below), and that acts as a pointer. While your hands are on your lap, which you use to click/drag things. It is kind of similar to how you don’t need to look at your keyboard or mouse buttons to interact with things on your screen.