Common Hand Signal for Scuba Diving

The “Okay” Signal The first hand signal that most scuba divers learn is the “Okay” hand signal. The “Okay” signal is made by joining the thumb and index fingers to form a loop, and extending the third, fourth, and fifth fingers. This signal can be used as both a question and a response. The “Okay” signal is a “demand-response” signal, meaning that if one diver asks another diver...

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