Ключевые слова: angry, bad, choice, choose, client, concept, connection, consumer, customer, disappointment, dislike, dissatisfied, efficiency, emotion, evaluation, experience, expression, feedback, feeling, give, hand, icon, low, marketing, measurement, negative, not good, online, opinion, performance, poor, problem, product, quality, questionnaire, ranking, rating, reputation, result, review, sad, satisfaction, score, service, status, survey, symbol, unhappy, user, vote,