Ключевые слова: abstract, attitude, background, bad, blue, business, character, cheerful, childhood, choose, concept, copy, cube, customer, emotion, expression, face, feedback, fun, funny, good, hand, happiness, happy, icon, joy, marketing, natural, negative, object, online, optimism, optimistic, play, positive, product, quality, rating, review, sad, satisfaction, service, sign, smile, strategy, survey, symbol, toy, user, wooden,