Write about the funniest thing that ever happened to you. Write about all the things that make you feel happy and alive. Write a paragraph about an occupation you would want, then write a paragraph about an occupation you wouldn't want. Include reasons why you would and wouldn't want the occupations. Write for five minutes about the type of life you consider to be exciting.
Different people relax in different ways.
Describe your idea of a relaxing evening. Write a short description of the book. Your best friend is having a party. Prepare a short speech on the subject. Write the recipe for your favorite sandwich.