What should yo do first when a vessel capsizes?

When a vessel capsizes, the first step is to ensure your own safety by staying calm and assessing your surroundings. If possible, try to remain with the vessel, as it may provide buoyancy and be more visible to rescuers. Look for other survivors and help those in need, while signaling for help if there are people nearby. If you are in the water, float or tread water to conserve energy while awaiting rescue.