Ключевые слова: academic, adult, answer, answering, asking, authentic, back, candid, casual, caucasian, chair, child, children, class, cute, day, education, female, girl, hand, indoors, inside, kid, kids, learning, little, looking, modern, natural, playing, question, questions, raising, raising hand, real, rear, school, sitting, student, students, table, teacher, teaching, together, volunteering, vote, voting, woman, young, youth,