Being in another one of the classes that his father had recommended he take meant Changmin was in yet another class that bored him to death.
He had no interest in sociology whatsoever. Learning about a society he generally enjoyed rebelling against was not at all something he cared for, though he did have a rare moment enjoying it when the topic was about social customs in foreign cultures. Other than that... nothing really stopped him from falling asleep in his usual spot at the back row. Or taking a quick break outside for a smoke (and not exactly planning on coming back). Or...
He lifts his gaze from the graffiti on his notebook, scanning the class until he spots a certain pupil seated forward and just diagonally left of him with her head buried in her book, scribbling down the lecture notes energetically. Im Yoona, quiet, shy, cute. Extremely socially awkward and extremely amusing to Changmin.
With an impish grin already curling his lips, Changmin tears a corner of his page, makes a quick mini sketch of a chibi Yoona with a blushing face and nervous stance, and waits for the professor to turn to the whiteboard. He then aims it at her desk, mouthing a silence yes when it bounces off her hand and onto her notebook, though it earns him a stern look from the lecturer when he turns and witnesses the action (but luckily, no further action).