Ключевые слова: activity, adult, african, american, appearance, audience, auditorium, colleagues, communication, conference, cooperation, course, diagnosis, education, emotions, ethnicity, explaining, faculty, group, healthcare, indoors, intelligence, interaction, interior, international, knowledge, lecture, lecturer, lecturing, man, medical, medicine, meeting, participants, partnership, people, portrait, positive, room, smiling, speaker, students, teaching, team, tutorial, university, whiteboard, workshop,