Final answer:
Communication with the flight deck should focus on relevant updates or issues related to the operation and safety of the flight, excluding personal opinions.
Step-by-step explanation:
When talking to the flight deck, it is important to communicate any relevant updates or issues that could affect the safety and operation of the flight. This includes emergency information, technical issues, security concerns, and any significant updates regarding the flight's operation or passenger welfare. Communicating personal opinions is not considered appropriate or necessary in conversations with the flight deck during a flight. The primary focus should be on operational and safety-related information to ensure effective decision-making and aircraft management.