At my school, we usually have a small event during Valentine's... XD
At the janitor's desk, you can send a rose to someone (have to pay a small amount of money) :P You can choose to put your name as a sender or you can choose to stay anonymous~
During Valentine's Day, a few students would get the task to hand over the roses to everyone ^o^
It always causes a lot of chaos and curiosity among students XD