How do i Know if he likes me or not?

ok friday night i ask this guy at this pRTY TO DANCE WITH ME AND WE DANCED 4 LIKE THE WHOLE NIGHT. BUT I HAD A BOY FRIEND AND HE HAD A GIRLFRIEND.BUT AS WE WERE DANCEING I JUST HSPPEND TO LOOK UP AND WHEN HE LOOKED ME IN THE EYES I FELT SOMETHING I HAVE NEVER FELT BEFORE. ME AND MY BOYFRIEND BROKE UP THAT NIGHT.SO TO DAY AT SCHOOL I STAED OUT OF P.E. CL AND WENT TO MY HOMEROOM AND HE WAS THERE. SO I WENT IN AND ASTED LIKE NOTHING WAS DIFFERENT. AND THEN HIS FRIEND CAME OVER AND ASK ME IF LI LIKED HIM AND I SAID MAYBE SO WHEN SHE WENT BACK OVER THERE. THEN HE CAME OVER AND SET IN FROUNT OF ME. AND WE TALKED 4 THE REST OF CL. DO U THINK HE LIKES ME OR IS JUST BEING NICE?AND IF U DO LET ME NO SOME TIPS TO GET HIM