Okay so there's this guy and we have been non-stop talking in school for the whole week. And then all of a sudden when I asked him for his cell number yesterday he stop talking to me. But he still like stares at me. And one of my friends said he said he doesn't know me very well. But how is he supposed to if he won't talk to me AT ALL? What should I do? And please don't say "follow your heart".