Ключевые слова: achievement, adult, africanamerican, applauding, audience, beautiful, black, business, candid, caucasian, center, chair, cheerful, clapping, collar, conference, congratulating, cooperation, corporate, education, ethnicity, event, expertise, formalwear, group, hall, hand, happiness, indoors, leadership, lecture, meeting, men, motion, multiethnic, multiracial, occupation, participant, people, presentation, professional, seminar, sitting, smiling, speaker, training, women, young,