Communication involves the transfer and understanding of meaning through various channels such as verbal, written, and nonverbal means. Effective communication in the workplace is important for safety and requires an assertive yet non-threatening approach. Key aspects of communicating unsafe actions include setting the stage, avoiding offensive statements, actively listening, agreeing where possible, maintaining a calm demeanor, focusing the message, using examples, sharing relevant stories, encouraging adherence to standards, and following up with agreed upon actions.