Ключевые слова: affection, arm around, back to school, black, boy, caucasian, cheerful, child, childhood, classmates, corridor, cute, education, elementary, elementary school, female, friend, girl, hall, hallway, happy, holding, love, male, mobile phone, outdoors, phone, pupil, school, schoolchild, selfie, smartphone, smiling, standing, taking picture, wireless technology,