Choose stationery to write the letter on. While standard loose-leaf or notebook paper will do, a fancier stationery will make your letter seem more classy and special. If possible, find a stationery that contains an image that will mean something to the recipient. For example, if the recipient calls you "honey bee" as a term of endearment, choose a stationery featuring the image of a cartoon bee.
Think about what you'd like to write. If you are responding to a letter you received, plan to answer any questions that the other person posed in his letter to you. Include any new important developments in your life and also let the person know you are thinking of him and how you feel about him, such as, "I miss you so much. I can't wait until you're home" or, "I'm so happy for you. I can't wait to hear all about your new job."
Prewrite your letter. On a piece of scratch paper, write a list of all the topics you'd like to mention in your letter. Don't write complete sentences, but instead write notes like "Bobby's first tooth," "Mom's birthday coming up" and "Mention car repairs." This will help you organize your letter, decide what to write about and help create a natural flow to your letter.
Handwrite your letter carefully using a pencil or pen. Write the date near the top of the page and on the first line write "Dear," followed by the person's name. Write the body of your letter containing the information you listed in your prewriting and end your letter with "Sincerely," "Love" or another closing line. Take your time in writing the letter, especially if it is a longer letter and if you have poor handwriting.