Youll regret it if you dont talk to her mate, trust me
I know that m8, iv went through it before for two years. iv only liked 2 girls that iv wanted to date in my life. this being one of them.
just start a conversation with her, give her a smile when you walk past her, or add her on facebook or something
Start with social networking sites. They are the best Imao if she does not knows you.