Pick up a pencil, some paper, and move your hand....
I just do it. Fool around, doodle. You can doodle with words, or a camera, just
as you can doodle with a pencil. That gets the creative juices flowing for me.
I've been putting off writing the introduction to a book a friend and I are
compiling. I'd start, I'd stop, I'd throw it out and start again. Finally this
evening I sat down and started playing around with words, phrases, silly and
serious thoughts. Next thing I knew I was writing.