House almost smiled at the way the kid...Aang, his name was Aang...went from childish exuberance to an adult-like formality. He thought Aang should stick to being a child. It suited him. Besides, goodness knew politeness was wasted on House.

"Good to meet you. I'm Greg." He offered his hand because, well, if they were going to make this official, then it had to be sealed with a handshake. "And just so you know, I'm a doctor, and I say Avatar or no Avatar, you really do need to find a safer way to amuse yourself for a few days. A nice game of chess, perhaps."