Ключевые слова: adult, arm, background, body, business, choosing, clicking, communication, community, cursor, direction, finger, fingers, forefinger, gesture, gesturing, grey, group, hand, hand up, holding, human, index, isolated, male, man, many, message, part, people, pointing, popular, present, presentation, raised, row, selecting, showing, sign, signal, symbol, team, teamwork, together, unity, up, view, wall,