"Great," Charlie whispered back, hopping out into the hallway, swaying a little with the movement of the train.  As she approached, the first distinct thing she heard was a question.  Whether or not the various first years wanted to be in whatever house, or play Quidditch.  
Charlotte didn't know much about the houses, but she had heard plenty about quidditch and it sounded like a blast.  A ball game played flying on broomstick?  Yes please!

"I want to play quidditch!" She answered enthusiastically.  "I'd give it a try, anyway!"  She was oblivious to the fact that Caelum hadn't wanted attention drawn down the hallway toward them.