Ключевые слова: advertisement, advertising, affection, analysis, analyzing, ask, business, buyer, care, cheerful, client, clients, communication, conceptual, confidence, consultant, consumer, customer, customers, dedication, efficiency, feedback, information, knowledge, loyalty, market, marketing, perform, performance, product, quality, referrals, relationship, report, reports, research, satisfaction, saying, sayings, service, statement, strategy, support, target, understanding, way, work,