Do not just walk up to me and say the name of a grape varietal. “Hello” is a nice way to start a conversation. Or “Excuse me.” Or, you know, “OH MY GOSH YOU’RE VINTAGE BARB!!” But honestly, a furrowed brow and an “Uh, pinot grigio?” will illicit an unenthusiastic point of the finger and a desire to kick you in the shin. Learn some freaking manners.