I said subtle because I am not inexperienced in this area and these "signals" absolutely are subtle/ambiguous a decent portion of the time. And clearly you do need to track all 1000, otherwise how would you know if someone is trying to "signal interest or a lack thereof"? If I'm not paying attention to that one signal and they use it, then I'm missing the signal.
Indeed, I didn't say subtle because I thought it was so obvious it went without saying. My bad.
Now why these social cues are so often subtle or ambiguous is itself an interesting question. It's not one I have any good answers to though. In this area, as in most, I'm a phenomenologist and not a theorist. Needless to say the phenomenology I've developed precludes telling a woman I'm interested in about the phenomenology I've developed. Except of course when I think she might find it attractive. Human social interactions are marvelously complex. Frankly my inclination to start navel gazing has set me back once or twice.
