Nope. This does not really work. The endgame is a loss for both parties involved.
If you feel attracted to someone, make this clear in simple, unmistakable terms. Do not appear to be clingy, desperate. You are not, so why lie?
Playing "difficult to get" will get you nowhere. As pointed out by a previous poster, a dude who has a healthy sense of self-esteem will quickly move on. A dude who has issues, emotional baggage, etc., may fall for your ploy. Leaving you with a date who is most likely not going to work out for you.
Honesty is usually the best policy. If there are very serious reasons for you to look into other options, do so. But honesty has been and remains a good default.