One day. You are walking through the city named "Ba Sing Se". As you are walking, you are looking around, because you are new to the city. So as you are looking around, you accidentally bumped into Sokka.

Sokka: Watch where you are going, moron.

Katara: Be nice, Sokka!

Aang: Guys, don't fight! It was just a little accident.... Are you ok? Aang asks you.