Tipping etiquette differs culturally, ranging from mandatory service charges included in bills to discretionary tipping practices. In many countries, a 10-15% tip in restaurants is standard if service charges aren’t included. Hotel staff, taxi drivers, guides, and other service providers often expect modest tips. Research local norms to avoid embarrassment or over-tipping. Carry small bills and coins for convenience. Tipping supports those in the service industry and is seen as a sign of appreciation for good service.