Solution [4]

I was sitting on my seat inside the classroom, waiting for the teacher to come inside. Almost all of these "lessons" so far have been completely useless to me. I'd discovered most of the magic by myself and what I did want to learn about—say for example teleportation magic—they had little to no information about it.

I was at a point where even if I outright skipped the lectures it would have no negative effect on me. 

I still decided to come though since the classroom itself gave a lot of information that was not related to magic, but rather people and what was going on in the noble society. 

A few minutes later a bell rang from the clock tower, announcing that it was time for the classes to start. All the students became quiet and those who were sitting and chatting with their friends settled on their own seats.