1)
Sokka: okay you got me, you happy now?
Zuko: im never happy :(

2)
Zuko: It's not a dance its a form!
Katara: and what is your 'form' called
Zuko:...dragons dance...

3)
Zuko: YOUR JUST A CHILD!
Ang: well you're just a teenager...

4)
Sokka: My first girlfriend turned into the moon...
(looks around, okay then)

i cant think of all of them, im just happy avatar's back