Theres this girl i like how to i get her attention?

Like she really beutiful and i think she likes me but how can i tell and if she does how do i move forward with out our freindship being ruined? were supposed to hang out in a few day would playing her a song and singing to her be to much?? if not what song should i do i want ed to do like 'hero' by enrique iglases or 3am by matchbox 20 girls i really need ur help!!