If you have the ability to interview with more than one firm then do so. Smith Barney has a better training program and offers better support for FAs. Additionally, SB, Merrill,  MS, Wachovia, and RBC offer a better understanding of the US investor than does the Swiss managed UBS.

  To answer your question I have not been through the intial UBS interview process, however I did work for them for years. Be honest in all your answers. They are looking for smart, articulate, and money motivated people. If you are shy, or are not a people person, look elsewhere. While most in our industry now refuse to believe it, the position you are applying for is a sales position. If you can't sell, or don't want to sell, look elsewhere. If sales doesn't put you off well then, you've got you're first selling assignment. Sell UBS that you are the best candidate they've ever seen. Its that simple.