Obtain a course catalog from your college and review all writing seminars. Select the course that best fits your schedule. Depending on enrollment, most schools offer multiple periods of the same course.
Contact the registrar's office and ask about the availability for each writing seminar. Writing courses are a requirement for some majors, so they can fill up quickly. Pick an alternate course if your first preference isn't available.
Meet with your school's financial aid office. Although you're not receiving credit for the course, there are still costs associated with enrolling. Inform them that you're auditing a writing seminar and apply the additional costs to your tuition.
Meet with your instructor. Explain that you're planning to audit their writing seminar. Develop an academic plan and discuss what will be expected of you during the term.