It depends on exactly what you do when here but if it's work, then yes, strictly speaking, you need work authorization. (Years ago, this wasn't true and one co

It depends on exactly what you do when here but if it's work, then yes, strictly speaking, you need work authorization. (Years ago, this wasn't true and one could travel to the U.S. as a business visitor to conduct business on a limited basis if employed by an entity abroad.) The problem is that such a work visa (the E-3, for example) requires a company in the U.S. to act as the petitioner/employer.