I'm the stereotypical reclusive, clinically shy geek, but I've gotten past puberty, and stopped considering penetration to be the "end game". Note that those douchebags seem to be exclusively care about that, there's no "relationship artist" trade that I'm aware of.

If you want to have a better understanding of all the intricacies of group dynamics, body language, etc. unfortunately I don't know of any other resource. Does it comes with a lot of BS and sleazy stuff attached? Yes, so just filter that out. But don't ignore it completely, you're doing yourself a disservice. A lot of the power dynamics and body language stuff applies to work situations as well btw...

Sorry, no citations here, just my personal experience, so believe what you want. But I can tell you its like night and day now that I know what to look for.