Look for a deserted hallway

Anna would need her shoelaces for sure now. Maybe if she found a hole punch, she could even make some openings where her buttons used to be and lace her shirt up like a Medieval corset. Somehow, she would need to get back to her math classroom. She thought she knew an inconspicuous route. There was a long hallway that was mostly unused, with no doors except at the beginning and end. There was nowhere for someone to pop out unexpectedly. If she was lucky, there would be no one around, and she would be able to make it much closer to the classroom without being seen.

Holding her shirt together in front with one hand and her skirt in back with the other, she awkwardly tip-toed down the hallway in a crouch.

Shit, someone was there! It was a chubby, nerdy Asian kid wearing a school sweater vest and tie. He was concentrating on the screen of a Nintendo Switch, seemingly lost in the game. Maybe she could sneak by him. She very self-consciously tried to walk inconspicuously, taking the kind of footsteps that she thought would made her sneakier. However, this caused her to move awkwardly, making her less stable than if she had just walked normally. She was getting closer to the guy, seemingly undetected.

Just as she was about to sneak by him, her sock slipped on the tile. She instinctively stuck out her arms to keep balance. This made her drop her skirt and let her shirt spread open, which caused her to involuntarily yelp. The guy looked up from his video game and a look of total surprise came over his face. Seeing him watching her made Anna panic even more, frantically wobbling. She stepped on her fallen skirt, which slipped out from under her.