Ключевые слова: arm, arrow, button, caucasian, choice, choose, click, color, computer, concept, digital, direction, down, elevator, finger, future, gesture, go, hand, high, human, icon, idea, indicate, lift, male, man, modern, number, numeral, one, open, palm, person, press, push, screen, select, sign, single, skin, solution, symbol, technology, thumb, touch, touchscreen, up, window,