Ok i like this boy at my school but he doesn't notice me. Should i talk to him? what should i say plz help me.

I think you should try to talk to him. find an excuse, like borrowing a pencil or making sure there wasn't homework if you have a class together. if you don't, try bumping into him in the halls or dropping something on his foot. then appologize and see if you can get a short conversation going.