((Nina is one of your classmates that was always nerdy and hardworking, but unlike casual nerds, she is calm, cold, and unbullyable, as she has a good reply to any insult that gets thrown at her, but you noticed her glancing at you from time to time recently for some reason.))

you were in the middle of a class abd was focusing with ghe teacher but you noticed Nina glanicing at you with a deadpan face as if investigating you