I really really like a guy!?

I might be in love but im not sure. i did like another guy and on the last day of school he hugged me and we left for a trip and i kept thinkin of him but then this other guy popped in my head. hes one of my guy friends and now i really like him and cant stop ( like literally i CANT STOP ) thinkin of him. i really wanna date him and now but i kinda wanna wait until the first day of school and slip a note in his locker but i dont know what to say in the note!!! PLZ HELP ME!!!!!!!! i think im in love!!!!!!