Help me: notes to stick on all the lockers at my school for tomorrow

Sasa
Tomorrow for Valentine's Day I'll go earlier to my school with the caring and gsa club to stick a positive note on every locker at school. There are a lot and I was wondering if you could help me find some quotes or sentences to write. It can even be a single word. It has to be positive but other than that you can write whatever you want!
I'm really putting effort into it but I don't want to write the same twice and there are so many lockers!
It would mean the world to me if you could help me!
Also I have no idea What category  this belongs to😅