This is by far the best advice offered in this thread. Women respond to the push/pull method. They want what they can't have and they don't want an easy catch. If you throw yourself all over her, smother her with gifts, proclaim your feelings for her, and put her on a pedestal, she will loose interest and respect for you and cast you aside. You don't have to go FULL A-Hole, but play it cool, act a little disinterested at times, make yourself unavailable at times, talk, laugh, and flirt a little with her friends, comment on those minor imperfections of hers which all women (no matter how beautiful they are) are consumed with, and SHE will CLING to YOU! I shouldn't be offering this advice for free, but I'm feeling generous.
Then again, you could follow