Ключевые слова: app, black, boy, boys, caucasian, cell, cellphone, child, children, closeup, communicate, communication, cute, education, educational, female, friend, friends, girl, grade, group, isolated, kid, kids, kneel, kneeling, learn, learning, look, looking, male, media, mobile, pda, phone, play, playing, portrait, prep, preschool, preschoolers, school, send, sending, sit, sitting, smartphone, sms, social, technology, three, together, touch, touchscreen, type, typing, use, using, watch, watching, white,