Pay your SEVIS Fee. Your I-20 form was included with your acceptance letter. New students with an initial entry I-20 are required to pay a $350 SEVIS I-901 fee. You must pay this fee before your visa interview. Instructions and answers to all your questions can be found here.
For your visa application: Visit the websites of the U.S. State Department or the nearest U.S. Embassy.
10 Points to Remember When Applying for a Student Visa
Prepare for Studying in the U.S. You can get great information about preparing for your studies on the EducationUSA web pages. You may even be able to attend a pre-departure orientation hosted by an EducationUSA advising center located in most major cities worldwide.
Already in the U.S.? Check in with the International Center regarding procedures to follow as a transfer student or as an applicant applying for change of status.