Ключевые слова: accepting, african american, banking app, bill, cashier, cashless, checkin, contactless, contactless payment, customer, device, digital, electronic, female, giving, guest, holding, hospitality, hotel, lobby, lounge, machine, making, man, mobile, mobile payment, mobile wallet, nfc, nfc transaction, order, pay, paying, payment, phone, pos, restaurant, service, sitting, smartphone, smiling, technology, terminal, tourist, transaction, transfer, using, waiter, waiting, wallet, woman,