I love this guy in all my cles help me with what i should do to make him like me before summmerrtime please?

i dont know how to flirt or what to do and im not a super thin girl like my best friend bri who just so happens to also like him shes a model and plays the guitar and cheers whereas i haye sports but i cheer play bball and the flute HELP ME I LOVE HIM SO MUCH!!!!!!!!!!!!!!!!!