Ключевые слова: book, boys, casual, cheerful, class, college, education, friends, friendship, fun, girls, group, happiness, happy, isolated, lifestyle, male, men, mobile, people, phone, picture, portrait, school, self portrait, selfie, smartphone, smile, standing, students, studio, study, studying, team, teamwork, teen, teenage, teenager, together, university, white, women, young, youth,