The Ravenclaw would have waited for a response from the other girl, but a boy behind her asked if there was more room, so she was forced to go inside.
"Well, right now there isn't, but I can make it so there is. Capacious Extremis!" With that, and a flick of her wand, the inside of the train car, expanded, so that there was room for another person on each side. The light from her wand reflected of her crazy glasses, all around the compartment, until it faded away.
She gestured for him to sit on one of the seats as she started talking.
"Anyway, my name is Laura, Laura Longbottom." She adjusted her glasses, and looked at the boy who just recently entered.
"Oh my, your quite full of Nargles." @Dirty Dan @xxLyraxx @ImagineVillains