Ключевые слова: activity, asian, bodybuilding, boys, caucasian, cheerful, childhood, children, class, daytime, dumbbells, elementary age, emotion, emotional, european, exercise, exercising, fitness, footwear, four people, girls, group, gym, indoors, kids, looking at camera, multicultural, multiethnic, positive, preteen, selective focus, smile, smiling, sneakers, sport, sport equipment, sporting, sports center, sportswear, together, training, working out, workout, youngsters,