Do you read comic in your mind with different tone, voice, while you read it in a silence? :)
That was the main idea for this workshop that I did with 1000 Drawings Stuttgart, a cooperation project between Comic.Juju and their team.
Basically we started from emotional sharing, how we make voice in different situation. After that we made comic from basic material, same picture, same keyword with different style.
More info to the 1000. project http://stuttgart.1000drawings.org/