How to be Smarter: You can have natural talent without trying; but if you want a skill, you need to practice. Find your talent and turn in into a skill you can use to open doors. How to be Prettier: Everyone I know that has this brand of flat irons really speaks highly of the product (I've been a Chi devotee for years). If you straighten your hair often, it might be worth the investment.
How to be (less) Awkward: When leaving a play, whether it is a college play or a Broadway one, no negative words about the performance until out of the theater. The chance is just too great someone who knows someone in the play overhears you, even if you think you are just talking quietly to your friends post-show.