Not like this

"Unfortunately your shoes or socks have to match the colour of your other clothes."

The girl now can't hold anything back, because there is a croud gathering around the two of you, and she can't take of her boots with one hand. Therefore she has no hand to cover up, while she tries to hurry to get of her boots, which actually only takes her longer, than normaly. After she finally got the boots of she covers up again and wants to run away but you stop her.

"You are not allowed to wear socks without shoes on this campus."

She stops takes her socks of and stares at you.

"C-Can I-I p-please g-go n-now?"

"Yes"