North America
In the United States, tipping 15-20% is standard at restaurants, bars, and for services like haircuts and taxi rides. Canada follows similar tipping practices with 15-18% expected at restaurants. In both countries, tips are often how service workers earn much of their income, so tipping is considered an important part of the bill. For other services like hotels, valet, or delivery, tips of $1-5 are typical.
Europe
European countries have varying tipping cultures. In the United Kingdom, France, and Germany, tipping is optional and often smaller than in North America, typically 5-15% if given at all. Many European restaurants include service charges in the bill, so additional tipping is not required. Spain, Italy, and Portugal similarly have optional, modest tipping cultures. In some countries like France, rounding up to the nearest euro is a common practice rather than calculating a percentage.
Asia and Pacific
Japan, China, and South Korea generally do not expect tips and may even find tipping confusing or offensive in some cases. In these cultures, good service is considered part of normal business. Australia and New Zealand have optional tipping cultures where tips are appreciated but not required. Thailand and some other Southeast Asian countries may accept tips, but they are not standard practice.
Middle East and Latin America
Tipping practices in the Middle East vary by country; some Muslim-majority countries discourage tipping, while others accept modest tips of 5-10%. In Latin American countries like Mexico and Brazil, tipping 10-15% at restaurants is common and expected. Service workers in these regions often rely on tips to supplement low wages.
How to Determine Tipping Amounts
Before traveling, research the specific country's tipping customs through travel guides or the local tourism board. Check whether service charges are automatically added to your bill, as this affects whether additional tipping is appropriate. Consider asking your hotel concierge or local residents about current tipping practices. When in doubt, a small tip of 5-10% is generally safe and appreciated in most places without being offensive. 
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