Ключевые слова: african american, anonymous, black, blur, buy, buyer, cafe, casual, cellphone, client, connection, consumerism, contactless, convenient, crop, customer, device, digital, e commerce, electronic, ethnic, faceless, finance, from above, gadget, high angle, indoors, internet, male, man, mobile, nfc, online, order, pay, payment, phone, purchase, restaurant, service, sit, smartphone, spend, table, terminal, transaction, unrecognizable, using, wireless,