How do you get the attention of the girl you have a crush on and is playing hard to get. ?

She never realizes that i am there. Every time i wanna talk to talk to her i start freaking out and i never do talk to her. Then when i do talk to her she always has something to do. I see her at the neighborhood pool she says hi and she leaves every time. How do i get her attention and tell her that i am in love with herHow do you get the attention of the girl you have a crush on and is playing hard to get. ?
BE BRAVE AND SHOW UR FEELINGS! girl love it when guys tell them there true feelings! now i am the the judge to tell u to break it to her slowly or just quickly say it but i wish all of luck with ur crush