I think the phrase "show disinterest" puts a bad spin on how you should act around women. A lot of guys take "show disinterest" to mean that you should let the woman come approach you, that you shouldn't be social, you shouldn't be warm to them, and in a way almost be rude to them when you talk to them.
That is definitely NOT what you want to do.
If you ask a woman a thousand unrelated questions, have a hard time letting your personality shine, have awkward conversation, then she'll be uncomfortable around you. But if you can relax, smile, and have a comfortable, nonthreatening conversation with a girl, you'll do some good work. All this "show disinterest" crap should really be termed as "don't show too much interest in the beginning".
By the way, this doesn't work on every woman. Some women are really shy, some aren't happy, and some are in relationships and think they can't talk to guys other than their boyfriends. You won't get EVERY woman to fall head over heels in love with you if you implement this kind of attitude, but it's the best way to go about it.
