 I think develop your personality and figure how that personality can be applied effectively to the medium. If you're funny, work on that. If you're just good and glib and can talk easily, more easily than I'm doing this morning, work on those elements. The technical side I don't think requires a lot of attention. What you're selling at the end of the day is you, so figure out what you're good at and how you can apply it to the medium.