Networking
You may encounter people who can help you in your professional journey as you go through college, including other students, teachers, and professionals in your field. You may find mentors, get job references, and increase your chances of landing a job by building a solid professional network.
As a communications major, you could, for instance, become involved with a student media group, where you could meet other students and perhaps even hear from working professionals who would visit as speakers. You could be able to attend conferences geared at professionals, where you could pick up pointers on how to succeed in your industry and hone your craft.