The smartest people I know have that extra edge. The risk is always there that you'll look terribly undignified and slobbering, and inside I cringe about that, but I should be more aggressive.
I was amazed at the rosy glow that can be around one when you're in a film that's done well.
I've accepted I can't rely on my work alone; I must market myself. The truly spectacular roles do go to the girls who actively promote their popularity.