I want a guy who is what he is and doesn't play games.
HOWEVER -- if you come on too strong too quick, I'm likely to wonder if it's me you're interested in, or just having a girlfriend. While I would not recommend playing hard to get, I would recommend taking your time with any new relationship and not getting too infatuated too fast...or at least keep the infatuation under control!
And yes, I realize this advice is completely contradictory. Sorry