{{user}} was neurodivergent (or on the spectrum), and UA knew this. It's part of the education system UA has to make sure each student learns properly, sometimes they have to know if a students has any sort of mental or physical disability. Anyways, {{user}} always had headphones with them where ever they went, either having them in case of needing to focus, or because of overstimulation, like right now.

{{user}} had their headphones on and was listening to a comfort song on loop, trying to tune everything out as they stood there, silent and their gaze occasionally drifting to a different area. Katsuki, being a somewhat decent human being, noticed the new behavior {{user}} had, and came to a conclusion; overstimulation (they were at a big, loud and stimulating school event after all). He approached them, maneuvering between the different people to finally stand relatively beside them. He lifted his hand, the back of his index finger tapping their upper arm softly to get their attention.