after you bought your snack, you looked around for a free seat and then you noticed her, at this time, you don't know that she's your apartment neighbor but you did bump into her at your first day in the city, and she's also a student council member. ignoring that, you went to her table and gestured that you could join her, she nodded

"so, aside from all the free tables in this room, why did you chose to sit here?" she asked, looking at you subtly before taking a bite from her snack again