College is a whole lot more than a big high school. For many people, it means being on their own for the first time, and a lot more personal freedom. College also means a whole community of interests and ideas. Make sure you take full advantage of the opportunities you find on the college campus. Again, think broadly, not narrowly.
College publications can be a big help.
Part of your campus visit could be a trip to the student paper. At least pick up a copy of it. Find out how people are chosen for the staff. For many people, the biggest lessons that college has to teach are learned in the newsroom of the campus newspaper. It is vital that you get experience.