I think gnu has the right approach. There's nothing more off-putting than someone who is obviously desperately searching for that special 'someone'.
If you come across as emotionally self-sufficiant, and interested in whatever it is you are doing, you will find people eager to share it with you. You may then have to discourage some of them, but there is always the possibility that 'someone' may come along that you don't want to discourage.