Gratuities can often make up a significant share of an American employed in a service industrys total salary, so its expected that both tourists and locals should tip waiters and waitresses, taxi drivers, porters, tour guides and others 15 to 20 per cent of your total bill.

Spain is one of many EU countries that typically add service charges to bills, so tipping isnt expected or customary, but will still be viewed as a kind and generous display of appreciation for exceptional service.

Its customary for Brazilian restaurants to charge diners a ten per cent service fee, but an unexpected additional five to ten per cent in cash will be gratefully received by servers who might not always receive their cut but keep it subtle, as Brazilians prefer to be discreet when conducting business.

Tips in Japan will often be politely refused by service staff and it may even be considered insulting to offer a gratuity in some cases, as strict Japanese cultural expectations are that good service should simply be a normal part of life rather than something to be rewarded.