Ключевые слова: 13, 15, adolescence, bonding, boy, casual, caucasian, cell, cellular, chatting, class, color, colour, communication, connection, content, exam, fit, friends, happy, image, indoors, isolated, jeans, knowledge, learning, look, man, mates, messaging, mobile, people, phone, relaxing, smiling, student, studying, talking, teen, teenage, teenager, text, texting, together, togetherness, two, young,