Ключевые слова: angry, background, bad, business, businessman, choosing, client, concept, customer, digital, disapprove, dislike, dissatisfied, down, emotion, evaluation, experience, feedback, gesture, hand, icon, information, low, man, negative, not good, online, people, performance, product, quality, rank, ranking, rate, rating, reputation, review, sadness, satisfaction, selection, service, show, social, survey, unhappy, user, vote, young man,