Ключевые слова: alone, app, arm, caucasian, cellphone, chat, click, communication, commuter, data, female, gadget, girl, hand, hold, internet, lady, lifestyle, looking, mail, message, mobile, motion, movement, phone, portable, railroad, screen, seat, sending, sitting, smartphone, sms, social, surf, tapping, text, touch, train, transport, travel, trip, typing, using, web, window, wireless, woman, work, writing,