Ключевые слова: 4, adult, african, arm, background, black, body, business, caucasian, closeup, collection, communication, concept, count, counting, finger, fingers, fist, five, four, gesture, gesturing, hand, human, idea, index, isolated, male, man, number, one, palm, people, person, pointing, set, show, showing, sign, signal, skin, success, symbol, three, thumb, touch, two, up, white, wrist,