8. Not Knowing Your Surroundings
There’s no quicker way to ruin yourself in the eyes of a bartender than by not realizing where you're at. Don’t make yourself look like a clown by walking into the grimiest of dives and ordering a Blue Motorcycle. Or a Flirtini. Truth be told, if you do that and the bartender doesn’t shoot you the stank-eye before telling you no in disgust, they're being far too nice. Tip accordingly.