Class participation is important. Silence may be misconstrued as lack of interest. Ask for help if you don t understand something. Professors keep office hours for the purpose of assisting students, and it is not considered to be a loss of face to admit confusion. The social distance between students and their professors is much less in the United States than in other countries.
Most courses require at least two hours of work outside the classroom for every hour spent in class.
Be patient with your self if English is difficult at first. Even if your English proficiency is good, your university may require you to take an English test after you arrive on campus, even if you have already submitted evidence of your English ability. Some universities will require that you take a special course, workshop, or orientation program before you are allowed to be in a classroom. Quizzes, Tests and Examinations US colleges and universities test students, particularly undergraduates, frequently. Examinations may call for specific, short replies or for longer responses in the form of essays.