This article is from the FAQ, by with numerous contributions by others.
i) Family ties - You should be able to present evidence of the existence of
immediate family members as well as their ages, occupations, residences,
and standing in the community (an affidavit from a parent should be
ii) Community connections - The students participation in his community such
as memberships in organizations, religious groups, etc.
iii) Financial ties - Ownership of assets (especially a home) in the home
iv) Job prospects - present evidence to show likelihood of being offered a
good position upon returning home. A letter from a potential employer
may be helpful. Also, be prepared to explain why the same education in
the home country is not ideal.
In rare situations, the consul may request that the student post a
Maintenance of Status and Departure Bond with the local INS office.