Ключевые слова: adult, aiming, alertness, announcement message, arm, background, blank, body part, business, caucasian, choosing, close to, closeup, communication, concept, confidence, copy space, counting, dictation, direction, empty, expertise, finger, gesturing, guidance, hand, hand sign, indoor, male, man, marketing, motion, one person, pastel colored, pointing, presentation, pushing, showing, sign, sign language, studio shot, success, symbol, teaching, touching, unrecognizable person, urgency, wrist,