Poland Culture, Etiquette & Language Essentials (Polish (Język polski))

10% at sit-down restaurants and pierogarnia (say the total amount you wish to pay BEFORE the waiter taps your card, or leave cash); Milk Bars (Bar Mleczny) are self-service with no tipping. Municipal tap water (Kranówka in Kraków, Warszawska Kranówka in Warsaw) is filtered and safe to drink nationwide.