Ключевые слова: adolescence, adolescent, app, attractive, beautiful, browsing, cellphone, cellular, chat, communication, exterior, friends, girl, group, hand, holding, individuality, internet, lifestyle, looking, message, mobile, mobility, obsessed, obsession, outdoor, outside, people, phone, portrait, send, sending, smart, smartphone, sms, student, technology, teen, teenage, teenager, three, touching, typing, using, web, woman, write, writing, young, youth,