Er...
I think being "authentic" attracts others only if your authentic personality is attractive to begin with.
If you're a shy dork and coworkers ask you to hit the bars with them and you are "authentic and real" and say "no thanks", then they all look at you like you're from Mars. A LOSER from Mars. So where does that get you?
I think sometimes you have to be inauthentic in order to get what you want (respect from coworkers, into a relationship with girls, nurture a new friendship, etc.)