Ключевые слова: adult, african, american, app, background, black, business, businessman, cellphone, close, closeup, communication, connection, device, female, future, hand, hands, holding, human, internet, isolated, man, message, mobile, modern, office, one, people, person, phone, screen, smart, smartphone, sms, social, space, technology, telephone, texting, touch, typing, up, using, white, woman, work, young,