[He glances around, and not seeing any obvious targets, just holds up his hand, taps it with the other, and a hole opens up in his palm. There's no blood, and he wiggles his fingers to show it still works, before closing the hole back up.]

Like that! I can only make a hole in things of a certain depth, so normal walls and floors are fine, but I couldn't make a hole through like, this bar counter, for example.