I walk around the crowd, breathing in, then out. I smile and let loose some fire, hitting some guys who were sneaking up on the girl. My cloak flies off, leaving me in just my normal fire nation clothes. I grin wider, no one recognizing me, which is good for me. I walk over to the girl "Need help with these creeps?" I ask her, smiling

(Nope, you did perfect. It gave me a chance to actually do something, since a crowd would be drawn to a fight.)