Directions How To Write Letter B Steps . On the ribbon, go to the design tab. Knowing how to write a letter is an important task but sometimes a stressful one. How to Write Clear Instructions 5 Steps (with Pictures) wikiHow from www.wikihow.com Leave an empty line and write the date just below the sender’s address. Before you begin writing your paragraph, you must have a clear idea of what the paragraph will be about. Assign an initial letter writing exercise.