Step one:
Exhale easily through your mouth while turning your palms down and bring your hands together in front of you until your thumbs touch each other (horizontal adduction).
Step two:
Inhale through your nose while turning your palms up and opening your arms to the sides (horizontal abduction). You will get a little "taller" in the water, your chin will come up and back slightly, and your rib cage will "open."
Step three:
Repeat steps one and two 5-10 times.