Ключевые слова: background, black, buy, buyer, buying, calculation, card, cash, caucasian, check, choosing, commercial, consultant, consumer, day, delicious, female, food, goods, hands, interior, leisure, many, market, pack, package, pay, payment, person, portrait, product, products, register, retail, sale, seller, shop, shopper, store, supermarket, technology, terminal, transaction, uses, variety, woman,