In response to your first post, I think its cos girls seem to have had a better understanding of 'the game' from day one. They have spent years reading their girly magazines with articles such as 'how to tease him', '10 ways to leave your man begging for more', 'how to get d1ck on tap 24/7' (ok maybe that last one was made up)
But basically they have known about the game for a loooong time, which is generally why women (in most cases) seem to have the upper hand in the dating arena. They know all about being a challenge, teasing, playing 'hot/cold' etc... because they've been reading 'dating tactics' like this for years... while boys on the other hand were too busy playing with toy soldiers/cars to care.
We (guys) are complete rookies by comparison!! Hell, I didn't even realise there was a big 'game' until I came to this site!!
So I'm guessing the reason women ignore you and act nonchalant is because they know all about not appearing desparate, being mysterious, keeping IL etc.. they know how the game works... well either that or they hate you and want you to go away.
But I hope for your sake its the first one.