To be done alone or with a podded partner.
Walk outside and to the quietest place you can find, where you’re surrounded in the most trees and grass and sky or other natural elements you can find. Open your mouth wide and put your lips on your own, or your partners, or a tree trunk’s or a building side’s body in a large O shape. If it’s your own or your partners body it’s good to put your mouth over a large joint or large bone. Then take a deep breath and as you exhale send a deep resonant tone into the bones/surface, keeping your lips connected the whole time and trying to send the tone strongly enough that you feel it vibrate your lips and vibrate deep into the bones of the body/surface of your partner. Let the tone carry until you’re out of breath. Then take another breath, move to another bone/surface and repeat. Keep toning into different bones/surfaces for ten minutes.