Ключевые слова: action, adult, agree, alphabet, arm, background, business, card, caucasian, closeup, communication, concept, count, design, education, female, finger, gesture, gesturing, girl, hand, hold, human, idea, index, isolated, language, message, nonverbal, number, open, palm, people, pointing, show, showing, sign, signal, six, skin, sky, space, success, symbol, third, thumb, understand, white, woman, wrist,