At the other girl's words - Belinda supposed she ought to know what her name was, considering she was a Ravenclaw in her year, but she didn't, nor did she particularly care - Belinda relaxed ever so slightly. If she did this quickly, she could cover up her mistake, and suffer no consequences.
"I had noticed, thank you all the same," she responded coldly. "I don't suppose you know how to stop it, seeing as you are a Ravenclaw." She arched her eyebrow, challengingly, and tried to think if she knew a spell that would at least get this off of her head. Frizz was never a good look.