A nurse can set the tone through several key actions: 1. Communication: Clear, empathetic, and respectful communication is fundamental. Using active listening skills and providing information in a straightforward manner helps in building rapport with patients and colleagues. 2. Professionalism: Maintaining a professional demeanor, including punctuality, appropriate attire, and adherence to ethical standards, sets a positive example for others. 3. Attitude: A positive, compassionate, and patient-centered attitude can significantly impact the healthcare environment, promoting a culture of respect and empathy.