Teaching speech etiquette: clear, fluent, and understandable speech; respectful, witty, and polite expressions; avoiding exaggeration, criticism, and belittling; adherence to privacy and professional boundaries; demonstrating truthfulness and responsibility; constructive criticism, encouragement, and positive opinion expression; adaptation to different ages and cultures; cleanliness of language, avoiding vulgarity; nonverbal communication and body language appropriateness; continuous professional growth and self-improvement