How to be Smarter: The smartest people don't tell you everything at once. They tell you about half of what you need to know, and then when you ask questions for clarification, they look even smarter when they expand on their knowledge as the conversation goes on. How to be Prettier: If you are being photographed over and over again, every few pictures, stop, breathe and smile again. By "freshening" your smile every few snaps, you can avoid looking too posed or fake.
How to be (less) Awkward: When I'm not sure what to use as a farewell signature in an email , I just take the last sentence of the email and make it into the closing (i.e. "Can't wait to see you, Molly" or "Let me know if you have any questions, Molly"). That way I don't have to worry about the sign-off being too formal ("Best, Molly") or too casual ("xoxo, Molly") for the relationship.