[random_guy]

I'd like to be able to believe that once again.

It's really as you said, social skills and no more: it's just about trial and error - knowing a lot of different situations and mindsets and learning how to 'work' with them.

I don't really know about all the esoteric stuff that these guys often talk about: I think they've been created so that someone can make a living out of it. But if they give the guys that are buying enough confidence to actually give it a try I guess it's okay.