Ключевые слова: abstract, africa, african, afro, american, background, black, business, businessman, caucasian, communication, counting, draw, drawing, european, female, finger, forefinger, gesture, gesturing, hand, high, hold, human, international, isolated, male, man, manager, marker, middle, model, nice, numbers, office, palm, pen, pencil, positive, show, sign, symbol, symbolic, system, text, thumb, whiteboard, write, writing, young,