Ключевые слова: american, bill, business, businessman, cash, change, check, compensation, concept, conceptual, crisis, cube, cubes, culture, dining, earnings, expensive, extra, finance, gift, give, giving, glad, increase, inflation, kindness, lifestyle, money, orange, pay, paying, payment, pleased, profit, restaurant, service, symbol, taxable income, text, tip, tipflation, tips, too much, traditional, turn, value, waiter, waitress, word,