I (a girl) think i like my friend (a girl)?

ok so i've known my friend for like ever and i think i might like her but i never have that felling you're "supposed" to have when you like someone. we talk all the time abut not like out of school. i think shes like really cute, nice smile, fabulous hair, great personality, etc. but im bi so what do yall think i should do because i don't really want to like ask her out or something? so pls help!