Ключевые слова: 1, 2, 3, 4, 5, arm, background, body, business, caucasian, communication, count, counting, female, finger, fingers, fist, five, four, gesture, gesturing, hand, hands, human, index, isolated, male, number, numbers, one, palm, people, set, showing, sign, symbol, three, thumb, two, white, woman,