She playing hard to get? or just not into me?

wll theres this girl im really into ever since the first day i saw her i was hypnotized by her beauty. we talk once in a while but wenever i ask her for her number she says i have to work for it and on myspace she never replies to me and then she told me on myspace she only replies to interesting comments. she also talks to me when she wants and leaves me wanting for more so people help me with advice on what to do or moves to make. and how to kno if shes into me at least a little