How should cabin crew communicate to passengers during unexpected turbulence?

Communicating with passengers during unexpected turbulence is critical for their safety and comfort. Making a public announcement (PA) to emphasize the need for seatbelts is the most effective way to reach all passengers simultaneously. It ensures that everyone hears the message clearly and understands the urgency of fastening their seatbelts to secure their safety during turbulent conditions.

Using a PA system allows for a standardized message that can convey important safety information quickly and efficiently, which is essential in potentially stressful situations like turbulence. Furthermore, this method avoids confusion and allows the cabin crew to maintain order and calm in the cabin. Ensuring all passengers receive the same message at the same time is crucial, as individual conversations or calls could result in some passengers not receiving vital information promptly, leading to unnecessary risks. Hand signals might be misinterpreted or missed entirely, especially in a crowded cabin, thus making a PA the best choice under these circumstances.