I agree that one class does not a speclization make. However, I also think specializing your resume can help you land the type of job you are looking for over another applicant if your sure you want to practice that type of law and it won’t change. A good “litigation” resume would include lots of classes like trial practice, vor dire, appellant advocacy, and other “skills” based classes along with moot court activity and participating in as many moot court competitions as you can. Securing a summer clerkship with a judge or in the PD/DA office and joining your local bar associations trial lawyer section and attending NITA conferences your school might sponsor.
But be forwarded, most law students are generalists, specializing your resume will limit the types of jobs you can realistically apply for. It will limit your OCI choices to firms that have your focused practice area, elsewhere they won’t believe you’re interested in other types of transactional work. It will give you the benfit of being focused at the cost of limiting your possible interviews. Making contacts outside of school with trial lawyers will be key to using your tailored resume to best affect in finding the job you really want.