"How excellent! Everyone! Please may I have your attention," the class paused in their work; he noticed that Hermione had a particularly complicated expression on her face - he imagined she was unhappy at being passed over to demonstrate the day’s charm as she normally would have been, but knowing Hermione, she probably felt guilty for feeling that way as well, "Now, Mister Potter, if you wouldn’t mind demonstrating your charm work to the rest of the class?"