[that is absolutely the sort of smile someone wears when they're purposefully trying to be unassuming. or at least, trying to make a good impression. Akira only recognizes it because it's what he does, whenever he's interacting with a teacher or someone outside of the small group of friends he's managed to accumulate]

[he gets it. he really does]

Nope.

[his answer is punctuated with a grin, half-amused]

Class 2-D. Ms. Kawakami is my homeroom teacher.

[leans forward a bit to study Rin's expression, kicking at the ground idly as he does so. he then continues, voice light]

Congratulations on your brand new Shujin reputation, by the way.