Don’t snap your fingers (or do anything else annoying to get their attention).
Don’t haggle.
Don’t get cute.
Don’t ask why you need to show your ID.
Don’t ask for the impossible.
Know what you want (and be specific).
Don’t try to get more alcohol by asking for “less ice.”
Don’t tell your bartender to make your drink strong.
Don’t order your drinks one at a time.
Always order Guinness first.
Don’t transfer your drink to the dining room.
Don’t hit on the bartender.
Don’t put trash in your glass.
Be ready to pay.
