I need boy advice- from boys or girls.?

so im 15 in 9th grade nd just yestrday this boy named kris, in my double-blocked science cl started lookin @ me. just all of a sudden. so again 2day, i caught him lookin @ me. its back nd forth back nd forth. then in the halls hes been lookin @ me 2. nd in cl i looked over @ him 2 c if he was lookin @ me, nd he was!!! he had a smirk on his face 2!! hes so cute nd idky like 5 weeks in2 science cl, now he likes me. does he even like me?? i mean im not an ugly girl nd its not like i went 2 school in my pjs or sumthing. but hes so cute nd i dont want 2 screw this up. the only thing weve said 2 eachothr is sry, cuz we got in eachothrs way. but wat should i do? we r both shy nd the only thing i could say 2 him would b hi. how gay is that? but anyway please help b4 i do sumthing stupid. thanx