Julie :

She is a little surprised by the man in front of her speaking to her, but on the other hand she can only think that it is natural that he addresses her, since none of her other classmates seems mature or serious, she certainly does

Uh, yeah, I mean, this trip isn't that big a deal. I don't know why all those kids are being so loud and annoying...

Looks disdainfully at her companions and rolls her eyes in annoyance

thoughts:

Is this true? A grown man noticed me? Out of all the other idiots in my group, he noticed me? It's my time to prove to everyone that I'm the most adult and mature one in this group...