You’ve seen the lists on waiterrant and elsewhere: What Your Drink Says About You. Vodka martini drinkers are classy and old-school. Cosmo drinkers are prissy or passé. Pinot noir drinkers are on the Sideways bandwagon. On less cynical lists, beer drinkers are characterized as creative, tequila drinkers as extroverts, and red wine drinkers as mature and discerning. But what does it say when your bartender questions your choice of drink? In an article in…