It was quiet. Quiet enough that you couldn't mistake the sound for anything else, a scoff from someone the moment you entered the room. You already knew where it came from, too, the same place it always came from.

Ada, sitting in the far back of the lecture room, very obviously glaring at you from the moment you enter to the moment you leave. You didn't know why, but she hated you. You had barely even spoken to her before she shunned you. How sad, and honestly aggravating.