Seems like there'd be an opportunity for a consulting business which guides you on which haircut to get, how to trim your eyebrows, which glasses to wear, etc. in order to get a promotion, be perceived as more more intelligent or more extroverted, depending on how you aspire to progress in your career.
Maybe such a thing already exists and I'm not in the loop. (I'm not talking about a personal stylist here- these seem to be to look more attractive/fashionable. Maybe there's a style that makes you look much more competent, at the detriment of your attractiveness- but you care about the former).
Alternatively, one could build software to do this for them.
Consider: Facial recognition with a camera facing the person is pretty well understood. It's not perfect, but it's probably good enough. Could we extend that to also pick up the subtle facial cues that this research is talking about? And then based on that, train a person on how to manually adjust those cues?
Maybe we're not quite there today- but I bet we're not far off. I can imagine seeing this as an app that you whip out just before you walk into that interview, like a mirror to adjust your hair, but for your facial expression.
Maybe such a thing already exists and I'm not in the loop. (I'm not talking about a personal stylist here- these seem to be to look more attractive/fashionable. Maybe there's a style that makes you look much more competent, at the detriment of your attractiveness- but you care about the former).
I'm also reminded of this: http://www.folklore.org/StoryView.py?story=Moustache.txt