Being geeky and probably mildly Aspie, I've always had trouble recognizing non-verbal signaling as well as using it appropriately. I am quite sure that this has negatively impacted my career to a significant degree, only partially mitigated by academic excellence. I'd happily trade a few courses, like philosophy, history and drafting, for Human Signalling 101. Of course, no such course exists anywhere in the world, for all I know. A couple of other interpersonal relationship courses would have been nice, too. Maybe a Dale Carnegie one.