Zuko glared at Sokka because... well... he was presently the most obvious thing to glare at, but his words were much more general.

"I've been here for eight months, so yeah, I'm a little bit angry."

There was a brief pause at the mention of his biggest temper tantrum. ...News really did travel around here, didn't it? Whatever regrets he had over that event were pushed aside for now though, and he crossed his arms hard over his chest.

"--I was trying to get its attention."