The United States, like virtually every other nation, has immigration controls on the entry and exit of persons. To keep appropriate documents on your person at all times, especially your I-20 international student identification document. The United States is the land of the automobile. Public transportation may be quite limited compared to what you are accustomed to at home, and distances are probably greater.
Many international students purchase an inexpensive used car for basic transportation.
The Midland campus is an excellent place for bicycle transportation as well. The Cedar Hill and West Palm Beach campuses are close to passenger rail service. All three campuses are within 30 minutes of a major airport. The majority of international students entering the United States do so with an F-1 visa. You should note on yours how many entries you are allowed.