I went on a course called Mcguire Programme. the physical is based on costal breathing... taking deep inhales using the costal diaphragm then speaking at the top of the breath, at the point just before your diagram goes back down. the next part is choosing your words before you speak, so having it clear what word you will say when you reach the top of the breath. the words leave your mouth when you exhale. when you sing, you know the words, and you take a deep breath before singing, and sing the word at the top of the breath, usually on the beat. I hope that makes sense. on the course you spend half a day learning to breathe that way, then getting a word or two out. the next day works on building confidence by speaking in challenging situations. hope that helps. let me know if you have any other questions.