Me and my classmates from weightlifting class we were knocking on the door and then I saw this girl I thought was gonna open the door and let us in. BUT NO. and finally someone (who wasn't her) opened the door. then I saw her and said "I know you saw us" then after lunch, I saw her again and said the same thing but a little louder (she was shorter then me (and the reason I'm adding that is because apparently I was intimidating her))