When buddy breathing, remember not to hold your breath and to blow bubbles, when the regulator isn't in your mouth. Your buddy takes two breaths and returns it to you for two breaths.

As you begin buddy breathing, you and your buddy grasp each other face-to-face for stability. Your buddy holds the second stage with the right hand and grasps your BCD or tank straps with the left. You grasp your buddy similarly with your right hand and guide the second stage to your mouth with your left

After your two breaths, your buddy the second stage back. Remember not to hold your breath and to make an aaaahhh sound, blowing bubbles, when the regulator isn't in your mouth. Your buddy takes two breaths and returns it to you for to breaths. Continue the exchange back and forth until you and your buddy establish a natural, relaxed rhythm.

Once you've got the rhythm set, you and your buddy would ascend to the surface, buddy breathing all the way. Your instructor may have you practice buddy breathing first in a stationary position. and then swimming along the bottom to simulate how long it would take to ascend while buddy breathing.