 Of course, you may have access to underwater helmets with radio communicators. But there is also an easy series of hand signals that you may master to speak underwater.
♦ "OK" is like a normal OK at the surface; forefinger curled and touching end of thumb, other fingers spread wide.
♦ "Something is wrong" is like a "so-so" sign at the surface; with palm flat and fingers spread, tilt your whole hand to the left and right.
♦ "Stop" is palm straight out, fingers together and straight up.
♦ Want to say "Watch me" - point to your chest.
♦ Mean "you lead; I'll follow" - point with one finger in the direction you want your buddy to go. Move the same with the other hand, and place it directly behind the first hand.
♦ Comprehend "get with your buddy" is make a fist with each hand, then extend each forefinger. Set the forefingers together lengthwise.
♦ Know "out of air" ' with the regulator still in your mouth, hold your palm flat and parallel to the ground. Move slashly in front of your neck.
♦ "Low on air" make a fist in front of your upper belly with the regulator still in your mouth and move it up and to the center of your chest.
♦ "My ears are not equalizing" is turn your head slightly to the side and point at your ear.
♦ Give the thumbs up meaning "let's go up".
♦ Give the thumbs down meaning "let's go down".
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