Ключевые слова: app, apps, attentive, boy, business, cell, cellphone, cellular, college, communications, computer, concentrated, connectivity, desktop, device, exams, home, house, inside, man, media, messaging, mobile, notebook, office, pc, player, playing, relax, relaxing, resting, room, sms, social, students, studying, tapping, technology, teenager, telephone, typing, using, watching, working, youth,