Reflection: "What your mother never told you about college"

                   Before reading What my Mother Never Told Me about College I knew that going to class was instrumental to understand the class and getting good grades. I also knew  that sitting in front or close to the front is beneficial.
                  What I would like to know is if it better to room with someone you know or to meet someone new? Are the best classes to take in the morning, and how to find fun in the college you go to?
                  After reading I've learned its not a good idea to room with your friends, I also learned time of day doesn't matter, you should pick the professor that is good. And if you need help the upperclassmen are a good source to get information from.
                  I still want to know what is the difference between a good professor and an easy one? And what are good ways to keep off the "freshman 15"?