Ключевые слова: adult, blank screen, caucasian, cellphone, closed eyes, communication, computers, connection, control, copy space, devices, earphone, exhausted, guard, handsome, indoors, job, keyboard, laptop, leisure, man, mobile phone, monitor, monitoring, office, one person, professional, protection, rest, room, security, service, shirt, sleep, smartphone, supervision, surveillance, tired, uniform, work, workplace, young,