Which action should a skier take upon receiving a thumbs up from the boat operator?

When a skier receives a thumbs up from the boat operator, it is a signal to speed up. This gesture is commonly used in boating to indicate that the skier is ready for more speed, typically because they are prepared for a trick or to maintain balance. By increasing the speed at this signal, the skier can have a better experience, as the momentum helps them stay upright and react to the water conditions more effectively.

The other options are not suitable responses to a thumbs up. For example, slowing down would contradict the skier's readiness for more speed and would likely make it difficult for them to maintain their position or perform tricks. Preparing for a jump is usually a different signal that would require specific hand gestures from the boat operator. Turning right does not align with the thumbs up signal, which focuses on the speed of the boat and the skier's readiness to proceed.