Ключевые слова: absorbed, academic, attentive, authority, blackboard, casual, classroom, confident, curly, education, educator, engagement, experienced, focused, guidance, hair, human, indoor, intellectual, jacket, knowledge, leadership, learning, leather, lecture, male, man, mathematician, mature, observant, participation, person, poised, presentation, professional, seminar, session, smart, speaker, student, teaching, university, wisdom, workshop, young,