At the beginning of each semester, I stress the importance of getting contact information from other students. Most students ignore this suggestion. Then, something happens. That student is unable to get to class, and he/she has no one to call. If you get contact information, and that happens, you can call your contact to find out what happened in class. Also, if your car breaks down, you can call someone for a ride. If you do not exchange contact information, you will be on your own. You will have no one to call for information and no one to call for a ride. Exchange contact information. Some of the friends you make in college, will become lifelong friends.