Ключевые слова: 2, adult, app, application, bonding, boy, cell, cellphone, cheerful, child, communication, connection, cyberspace, enjoyment, female, friends, friendship, fun, girl, happiness, happy, horizontal, indoor, joy, laughing, lifestyle, looking, media, message, mobile, mobilephone, outdoors, people, phone, portrait, screen, smart, smartphone, smile, smiling, social, students, technology, teenagers, teens, together, two, woman, young,