Ключевые слова: 20s, african, american, blank, browsing, class, closeup, coffee, communication, computer, connection, desk, device, digital, distance, education, female, focus, girl, guy, hand, hipster, holding, indoors, internet, knowledge, library, media, mobile, online, pc, people, person, pointing, professional, remote, school, screen, seminar, surfing, tablet, teacher, technology, training, typing, wireless, women, work, working, young,