Ключевые слова: advertising, angry, assessment, background, bad, best, block, business, businessman, choice, choose, client, concept, cube, customer, emoticon, emotion, employee, evaluation, excellent, experience, expression, face, good, hand, happy, icon, love, marketing, mood, negative, online, opinion, person, positive, product, quality, questionnaire, ranking, rating, reputation, review, sad, satisfaction, service, sign, survey, symbol, user, wood,