Ключевые слова: adult, app, application, browsing, business, casual, caucasian, cell, cellphone, cellular, closeup, communication, concept, connection, device, female, gadget, girl, hand, holding, human, indoor, internet, leisure, lifestyle, message, mobile, networking, online, person, phone, reading, single, smartphone, sms, standing, student, technology, telephone, texting, using, wifi, wireless, woman, young,