The Key question is whether the activities projected by an alien in the United States are considered legitimate for a business visitor.

It must be appreciated on an individual basis. The rule of thumb is that no money will be paid to the alien in the United States. When in doubt, please verify.

Certain activities, although innocently thought of as being visitor for pleasure are in fact not.

For example, one coming to the United States to give a lecture may be considered, depending on the circumstances a Business visitor.