Ключевые слова: adult, age, arm, audience, back, casual, celebration, cheerful, college, colored, communication, communications, community, confidence, cooperation, crowd, diverse, education, ethnic, excitement, friendship, fun, global, group, hands, happiness, happy, high, large, mature, men, mixed, participants, people, person, race, school, smiling, standing, student, teamwork, teenager, togetherness, university, up, variation, white, women, young,