I don't care

-1. Dress-

Aang grumbled as he waited for Katara to come out of the fitting room. Why did girls have to take so long with this stuff?

More importantly, why did she have to pick that dress to try on?

-2. Lightning-

Why did Azula have to strike Aang? What did he do to deserve this?

From the moment Azula shot Aang, Katara has always been terrified of lightning, because it nearly killed the amor of her life.

-3. Manliness-

Who says words of comfort and hugs arent manly?

Apparently, Sokka does.

But Aang wasn't ready to have Katara stop hugging him and murmuring soothing words into his ear.

-4. Anger-

Aang...

Azul is Spanish and Portuguese for blue, possibly a reference to Azula's Firebending.
Her name may also come from the Sanskrit term Asura, a Hindu term for demon.
Azula's name was originally going to be "Zula".

In some avatar comics, her name is mispelled "Takara" instead of "Katara".
Katara's voice actor, Mae Whitman, has previously played the part as Rose in American Dragon: Jake Long.

The Southern Air Temple is the only episode in which the título screen, which denotes the chapter and book, does not have a white background (the background is the sunrise).
According to the Nick.com's website...