- 1). Know "OK" ' like a normal OK at the surface; forefinger curled and touching end of thumb, other fingers spread wide.
- 2
Recognize "something is wrong" ' like a "so-so" sign at the surface; with palm flat and fingers spread, tilt your whole hand to the left and right. - 3
Understand "stop" ' palm straight out, fingers together and straight up. - 4). Recognize "watch me" ' point to your chest.
- 5). Know "you lead; I'll follow" ' point with one finger in the direction you want your buddy to go. Make the same motion with the other hand, and place it directly behind the first hand.
- 6
Understand "get with your buddy" ' make a fist with each hand, then extend each forefinger. Place the forefingers together lengthwise. - 7). Recognize "out of air" ' with the regulator still in your mouth, hold your palm flat and parallel to the ground. Make a slashing motion in front of your neck. (Gruesome, huh?)
- 8). Understand "low on air" ' with the regulator still in your mouth, make a fist in front of your upper belly and move it up and to the center of your chest.
- 9). Know "my ears are not equalizing" ' turn your head slightly to the side and point at your ear.
- 10
Understand "let's go up" ' give the thumbs up. - 11
Recognize "let's go down" ' give the thumbs down.
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