Ключевые слова: angry, assessment, best, block, business, change, choice, choose, client, concept, customer, day, emoticon, emotion, evaluation, excellence, excellent, experience, expression, face, feedback, good, hand, happy, health, holding, icon, man, marketing, mental, mood, opinion, poll, positive, product, psychology, quality, ranking, rating, reputation, result, review, satisfaction, service, sign, smile, survey, symbol, user, wood,