Ключевые слова: aim, aiming, arm, background, business, button, caucasian, choice, click, closeup, communicate, communication, concepts, count, direct, direction, finger, gesture, gesturing, girl, hand, human, index, isolated, male, man, manicure, moving, nail, one, palm, person, point, press, push, reaching, right, sensor, show, showing, sign, simplicity, skin, symbol, thumb, touch, white,