Ключевые слова: 1, 2, 3, 4, 5, abstract, arm, business, businessman, count, countdown, counting, fifth, figure, finger, first, five, four, gesture, gesturing, hand, hand sign, index, indication, isolated, man, number, numbers, one, palm, pointing, power, push, second, shirt, show, side, single, skin, symbol, three, two, up, use,