Those who turn their skinny-jean-encased-knees inward in order to look awkward. Wearing large black glasses with no lenses in order to take digital photographs then manipulate the photographs using photoshop. Those who wear Toms. These are common accessories of the every day ambient hipster.
The guy next to you who wears his headphones around his neck and blasts some obscure band that he will claim you don't know about is a hipster. Notice his skin tight V neck shirt. Vintage clothing ensues. A hipster will most likely never associate him or herself with the word hipster. In fact, he or she may raise their cigarette scented voice in anger in the fact that you are calling them a hipster. This shouldn't scare you because they are, of course, all pacifists and wouldn't dare lay a finger on you. That would dirty up their brand new self designed Toms.
"I don't give two cares what you think, I'm going to be a photographer. I'm going to be a fashion model, in France. I'm going to sit in my room, sip on black tea, and listen to my favorite boy sing my favorite songs. My eyes will be large, and my hair will be long before it becomes very very short. I'm going to take a roadtrip to Elizabethtown, and take polariods at every stop on the way. These are common hipster facebook about me's.
I will be as old fashioned as I want to be, and I'm going to change your life, in ten days or less."