Deep sighs, sometimes with voice, moans. Exhales longer than inhales.
Deep, slow sighs can downregulate you. So can extended exhales. They can also bring you into deep sensing, a calm, flowing arousal and letting go.
Experiment with how you can consciously regulate up or down, and how that feels to you.
Play with different sounds and tones as you exhale.
No pause between inhale and exhale.
Breathe through the mouth or the nose. Breathe at different rhythms to create different effects.
Inhale in 2, 3 or 4 steps. Exhale deeply. (in → in → ouuuut.)
When inhaling in steps, we play with the inhalation and relax on the exhalation, letting the air flow out of our lungs. Imagine walking up a flight of stairs while inhaling. After each step, you pause without exhaling. You can take two, three or more steps before exhaling. When you breathe through your mouth, it is as if you are sucking air "in little slurps." When you breathe through your nose, inhaling is like "sniffing." The most commonly used step involves only two steps on the inhale and a relaxed exhale.
Breathe as you normally would