i would call it a fake it till you make it type strategy.
palmistry is something that deangelo, among others, has noticed that is hard to mess up. girls tend to be inherently interested in things like this, and if you know the information, you can use it to your advantage.
when people begin to get involved in the game, they typically aren't the most confident individuals. this doesnt stop them from bs-ing and acting like they have much more confidence than they do, even if the only reason for these actions is attracting a woman. eventually, their confidence (theoretically) goes up, and they dont have to fake it anymore.
with palm reading, the initial interest in the subject might be for the sole purpose of attracting a girl. however, the user of it may end up finding something they genuinely find interesting. if they dont, then they drop it. but afterwards, they have some experience.
i dont know, maybe i'm young and naive. i dont agree with compromising your integrity, but my personal code doesnt include NOT learning palmistry for the sake of hooking up.
although i may just be rationalizing letting my testosterone infused brain, among other anatomical parts, lead my decisions. ha