My coworker is a hipster. I'm not sure if he knows it either. He has the beard (neckbeard) and shaves his upper lip, drinks Naked Juice, would rather eat granola bars over a regular meal, thinks Apple devices are superior because anything that runs Windows is just buggy (like Android phones), does not have any practical skills for any job, probably because he got a music/business degree and went $90k into debt with loans, thinks sketch/improv comedy is his future, and has memorized the name of every actor on EVERY show on the four main TV networks. I don't know how he does that last part. I trained him to take over a data management job at my company in my place and does a piss poor job most of the time, but corrects me all the time when I get the name of a show or celebrity wrong.
The reason I say he might not know he's a hipster is because he decided to go as a hipster on Halloween by carrying a ukelele. I asked him if he dressed any differently, he said no.