Ключевые слова: 20s, action, activity, adolescence, athlete, athletic, ball, basketball, bottle, boy, break, browsing, caucasian, cell phone, cheerful, child, childhood, chinese, communication, competition, connection, court, enjoying, enjoyment, female, fitness, friend, friendship, girl, group, happy, healthy, high school, high school kids, holding, holiday, internet, joy, leisure, looking, male, mobile phone, recreation, relaxing, sitting, smart phone, smiling, sport, sportive, sportswear, teenager, together, touching, touchscreen, using, vacation, web, wireless technology, woman, young adult,