Blink. He recognized that voice. Sokka turned around and when he spotted Katara, his expression was one of immediate relief. And he was happy and as he started running to her, he was all ready to hug her.

But then he realized that warriors don't hug and that would be incredibly lame.

So he stopped short of that and crossed his arms and made himself appear taller.

"There you are! I've been looking all over for you!"