Mr. Nice guy = epic fail. Play your game like you don't care. Girls test the waters A LOT, they want to see how your going to react to things. If a girl really likes you and she knows you like her (because we as men are very obvious) and decides not to call you, shes doing it on purpose, if you call her right away you failed the test. If you play it like you dont care she'll know if she doesnt call you you'll easily go find something more interesting to do. If its any loss for her then the next time she will call you.
women are not all that hard to figure out, they bascially want the same things we do (whether you want to believe that or not) and yeah totally agreed with the idea that disagreeing (but not being stubborn) with women really stimulates them into conversation. Of course dont disagree with the protection of animals or something like that, thats just going to make you fail. Be smart and stimulate your womans mind by challenging her, egging her on a bit, works like a charm.
girls like assholes, but guys who call them that are just jealous that they're not talking to the same hot chick. LOL But "assholes" are the ones that know how to get a woman talking.
Another trick, seperate "car time" and "girl time". Girls are "interested" by cars but not in the same way we are, keep the time you spend with both seperate, and avoid mentioning it as much as possible.