[He clasps his hands behind his back like a good orderly, awaiting instruction. She may be able to note the pinch of his brows, though.]

I have more than one. [She knows that, by now. Delving into the mind, versus moving objects with it.] But if you mean moving things, then it's as I said before: it's all a matter of focus and knowing how to harness the energy of the mind, focusing it on a single object. In the end, it's all about willpower -- and the endurance to not break concentration.