"Magic?" the Doctor scoffed. "It's a sonic screw driver. Works on just about anything that isn't wood. Very important piece of scientific instrumentation."
It looked like a metal wand with a green LED light at the end, with some bits that moved. He tucked the device back into his inside pocket.
"I've never actually seen anything like you, which is impressive. I've been around, Earth in particular. It's a pleasant enough planet and I've put a lot of work into it."