Customer making contactless payment with phone over counter

indoors three people man woman adults young adults 30s 20s millennials caucasian part of person hand couple staff customer coffee shop cafe small business local business food and drink business owners business relationship business partnership togetherness teamwork employee employer work job occupation barista service waitress waiter coworkers colleagues technology computer touch screen cash register paying payment buying smartphone contactless phone payment credit card reader credit card terminal selective focus close up handheld