When filling out a money order, you'll need some basic information, such as the recipient's name and your address. Fill in the recipient's name.Decide on the money order amount. By holding a money order up to a light, you should see: Ben Franklin watermarks repeated on the left side (top to bottom). Write the name of the person or business you're paying. There are two categories of envelopes for use in the U.S. Postal system: letter size and flats. Money order. References. edit.