take up an accent and act out a part or silly stereotype or something. You will be more comfortable and confident talking like Sean Connery than you would talking normally. As a mask, it gives you that security buffer since you can say you were merely acting the part.
Was I being too serious? Well too bad, I shall continue with my stiff upper lip, top hat and monocle. For soon it shall be tea time and in the name of the queen, it shan't be interrupted. *pinkie out*