Ключевые слова: activity, audience, baby, backgrounds, blackboard, board, boys, business, child, childhood, clothing, concepts, conference, culture, cute, education, ethnic, expertise, friendship, girls, group, hall, indoors, lecture, lifestyles, meeting, mixed, occupation, participant, people, person, positive, preschool, presentation, public, room, sitting, smiling, speech, summer, teacher, togetherness, training, wisdom,