Ключевые слова: advertise, advertisement, aim, arm, assistance, authority, caucasian, choice, choose, choosing, communicate, communication, decision, device, direct, fingernail, frame, future, gesture, hand, help, human, index, indicating, information, man, message, one, person, picture, point, pointing, present, presentation, relief, show, showing, sign, skin, smart, solution, space, standing, tablet, target, technology, touch, unrecognizable, visual, voting,