Verbal communication refers to communicating through words, while nonverbal communication refers to communicating through behaviors rather than words. There are several aspects to consider for effective verbal communication, including using language appropriately, being brief yet clear, considering ethics, and making the message vivid. Nonverbal communication enhances verbal messages and can communicate attitudes without words. Key aspects of nonverbal communication include facial expressions, gestures, tone of voice, body language, eye contact, physical distance, appearance, perceptions of time, and physiological responses. Mastering nonverbal communication is important for clearly delivering messages and engaging audiences.