Ключевые слова: advice, alphabet, announce, answer, ask, assessment, belief, best, blackboard, chalk, chalkboard, change, choose, client, comment, communicate, confidence, consumer, contact, customer, evaluation, feedback, idea, important, letter, marketing, matter, megaphone, message, motivation, note, opinion, quality, question, rate, reaction, report, research, review, satisfaction, service, share, staff, support, survey, thought, value, voice, word,