Me and this boy flirt but i don't know if he's into me that way?

i really like him. so heres the story..... i have to sit next to him in choir and at first i didnt like him at all... but i kinda fell for him me and him talk and smile at eachother and walk out to recess together sometimes we joke around.... but i don't know if he is into me that way so umm HELP!!!!