What should you do before starting the engine when guests are on board?

Conducting a safety briefing before starting the engine when guests are on board is crucial for ensuring everyone's safety and preparedness. This briefing typically includes information about the location of safety equipment, how to use life jackets, what to do in case of an emergency, and other essential instructions for a safe boating experience.

By providing a safety briefing, you help guests understand the vessel's safety protocols, which can be vital in an emergency situation. Having everyone informed about these protocols not only promotes a safer environment but also builds confidence among guests regarding their safety while on the water.

Other options, such as allowing guests to choose their seating or ensuring safety gear is stowed, while important, do not address the immediate need for safety awareness and preparedness before the engine is started. Turning off all electrical devices may not be necessary, as some devices might be required for navigation or communication. Therefore, prioritizing a safety briefing ensures that all guests are engaged and informed, which is the best practice for safe boating.