Ключевые слова: bank, banking, bill, business, buy, cafe, card, cash, cashier, cell, cellphone, checkout, commercial, consumerism, contactless, credit, customer, device, digital, electronic, finance, financial, hand, machine, man, mobile, money, nfc, pay, paying, payment, person, phone, pos, purchase, reader, retail, sale, shop, smart, smartphone, store, technology, terminal, transaction, transfer, wallet, wireless,