When he notices their teacher going to see what's out in the hall, while he hopes that Anastasia and Leon can get out of sight before his teacher catches them, as she's proven she wasn't going to be a pushover and he doesn't want them to get in trouble again, as it would be twice in the same day and it was only their first day, Zigfried at the same time knows Noah needs him to do something quick as well, as Noah needs help, Zigfried rips out a piece of paper a piece of paper from his notebook, wads it up, and then chucks it at Seto's back, not to annoy him, but just to get his attention enough to where he can point Kaiba to looking at Noah's direction.