Ключевые слова: 14s, 1517, book, boy, casual, caucasian, clothing, communication, culture, day, earphones, european, exercise, folders, formmates, friendship, girl, happy, headset, jeans, learner, lifestyle, listen, modern, moving, music, outdoors, park, people, phone, portrait, relaxing, russian, school, smile, students, sunny, teenagers, teens, three, together, urban, walking, wellbeing, youth,