Which signal indicates a victim is in distress?

A victim in distress often exhibits specific behaviors that indicate they are struggling for assistance. Waving a hand or splashing is a clear visual signal that someone is having difficulty in the water. Such gestures are instinctive responses to distress; they are meant to attract attention and signal that help is needed.

In contrast, clapping hands does not effectively communicate distress in a water rescue scenario. Shouting for help could indeed indicate distress, but it may not always be audible or possible for someone in immediate danger. Floating on their back is generally a sign of relaxation or an attempt to conserve energy, which may not effectively signal distress.

Recognizing the subtle yet decisive signs of someone in trouble is crucial for a rescuer, and waving or splashing is one of the most identifiable indicators that immediate action may be required.