Sit at a table with pen and paper; put yourself in a 'receptive' frame of mind, and start writing. Continue writing without thinking of what is appearing beneath your pen. Write as fast as you can. If, for some reason, the flow stops,leave a space and immediately begin again by writing down the first letter of the next sentence. Choose this letter at random before you begin, for instance, a 't', and always begin this new sentence with a 't'. Although in the purest version of automatism nothing is 'corrected' or re-written the unexpected material produced by this method can be used as the basis for further composition. What is crucial is the unpremeditated free association that creates the basic text.
-- Surrealist Games (Alastair Brotchie,