How to be Smarter: People that are considered intelligent tend to not only have mastered one subject (creative writing, the history of the Roman empire) in depth but also have a broad range of knowledge on many other topics. Sign up for Wikipedia's Daily Article mailing list
(https://lists.wikimedia.org/mailman/listinfo/daily-article-l). Daily you will receive one article summary written on any topic--extremely valuable and free way to expand knowledge base without investing much time.
How to be Prettier: Turquoise/teal is one color that almost universally flatters everyone, because it is the opposite of pink (the undertone in skin) on the color wheel. It plays up a flush in the skin and can be worn all four seasons. Invest in teal today.
How to be less Awkward: When you arrive at a holiday party, go directly to the bar. This will immediately give you a) something to do while you scoop out the scene and figure out who you know; b) someone to talk to you (the bartender) when you first arrive (building your confidence); and c) a drink to hold while you circle the room so your hands are not hanging like rags at your side.