How to be Smarter: I read Marry Him by Lori Gottlieb when it came out in hardcover last year (it is now available in paperback); my girlfriends and I passed it around and it sparked some interesting conversations about marriage and long-term relationships in general. How to be Prettier: I have a friend who paints her nails on her left hand a different color than the nails on her right. She usually chooses polishes that are hues of the same color, like this with this. It looks really cool, and if both colors are soft enough with only a subtle difference, it is work-appropriate in most offices.
How to be (less) Awkward: On your first day of a new job or summer internship, bring both a lunch from home (something that doesn't need to be refrigerated in case they don't have an office kitchen) and money to go out to lunch (in case your new co-workers want you to join them on their daily deli run). After the first day, you should have some idea what other people do for lunch and be able to figure out bringing lunch/buying lunch decisions from there.