I’ve worked with many introverted leaders over the years. I always tell them that outward expression will always be a “second language” to them. Even so, it is possible to become quite conversant in that language with practice. We use characters – such as Luciano Pavarotti or Martin Luther King, Jr. – to help introverts open up more power in their voices. Once they get used to the feeling of being louder and more present, we work to integrate those sounds into their everyday communication.