Where to give how much Tip?
The higher in the north your travel destination the less is expected.
The most common practice in EUROPE is 5 to 10% extra on the amount of the bill in the restaurant and taxi as well as a small Tip for the luggage and room service in the hotel.
In some European countries, there is a tendency to give little or no Tip.
This includes Iceland, Norway, Sweden, Finland, Denmark, Slovenia, Croatia, Estonia, Luxembourg, Switzerland and the Netherlands.
In Poland, Greece, Bulgaria and Kosovo, with 10% you are usually in the right place.
Something about 10 to 15% are in the Czech Republic and the United Kingdom (there is no hint in the Pups).
Incidentally, good service is particularly generous in Hungary (10 to 20%) and Turkey (15%).
In JAPAN, Tip has no traditionand is even frowned upon. In the land of the rising sun services are taken for granted. The Japanese therefore regard this as an insult.
Until recently it was the same in CHINA. This has meanwhile changed – not at least because of generous tourists.
In general, about 10% is customary in the tourist centers of ASIA.
In the US, on the other hand, you will be asked a little more to pay at the Tip.
15 to 20% of the bill is not just normal, it is simply expected.
Because: The tip is an important part of the otherwise too small waiter salary.