What signal does a thumbs up signify to a skier?

A thumbs up signal to a skier indicates that the rider wants the boat to speed up. This hand gesture is universally recognized among water sports enthusiasts. When a skier gives a thumbs up, it signals their readiness for an increase in speed, which is essential for maintaining momentum and control while skiing on the water.

In contrast, the other signals have different meanings; for example, a thumbs down generally indicates slowing down or stopping. Understanding these hand signals is crucial for safety and effective communication between the skier and the boat operator. Misinterpretation of these signals can lead to accidents or loss of control, making it important for boaters and skiers to be aware of and properly use these gestures.