Assign each letter of the alphabet a random number between 1-200.

Pick up a nearby book.

Choose an interesting phrase from the back cover or first page of text.

And write it horizontally (acrostic).

Then,

Take the first letter of the phrase and see what number you gave it. Turn to that page in the book.

Find a word that begins with that letter and write that word and every other word until the punctuation mark.

Continue on with each letter.