How to be Smarter: Go get a coffee, and go to Borders for three hours. It costs no money and you can read whole books in that time. This is my favorite activity to do in life. I can't say no to reading and coffee.
How to be Prettier: Just eat everything diet or low fat/sodium. Low fat hot pockets (lean pockets), diet soda, sorbet not ice cream, everything. You really won't taste the difference.
How to be (less) Awkward: No political jokes unless in a group of under three people whose views you know well. Otherwise, sample size/degree to which you know someone gets too risky and statistically speaking, joke will offend someone.