Bro, listen to me. I'll be completely honest if this applys to your life. Don't hang yourself to one girl. It doesn't help most of the time. In 8 years of crushing on a girl, you should know a hell lot about her. More than anybody else does. Use that to an advantage. Get as close as you can but not too close. Like Rob stated, take what she says and uses it. If she has a favorite sport, offer to play it with her. If she has a favorite movie, take her to watch it. If she has a favorite song, play it and try and dance with her to it. Get her attention on you. If she does turn you down, then open your eyes bro. There are a ton of fish in the sea. Don't keep your hook above just one fish that might never look up. Good luck