Ключевые слова: 20s, apron, buying, cafe, caucasian, cellphone, coffee, coffee shop, commercial kitchen, communication, computer keyboard, connection, contactless payment, convenience, counter, credit card reader, cropped, cup, customer, device screen, discussion, female, food and drink, food and drink industry, hand, holding, male, man, millennial, mixedrace, mobile payment, mobile phone, occupation, packet, part of, paying, phone, pointing, refreshment, screen, shelf, showing, smartphone, smiling, standing, taking, technology, touching, touchscreen, uniform, using, waiter, wireless, wireless technology, woman, working, young adult,