My suggestions: of course, Self Esteem Supercharger (the reason: often not wanting to "put yourself out there" is usually a self esteem issue), and Instantaneous Personal Magnetism. I actually suggest this one quite a lot, because it seems to enhance almost any goal--but it seems ideal for your particular goal. When it comes time for choosing a role model, be sure to pick someone who seems supremely confident about putting themselves forward. IPM usually works wonders for me.
