All Set for the Grin Revolution

I spent an hour today studying people's faces. Particularly to note when and how they smiled. Here are some of my observations:

• No one smiled in solitude.
• Most of the smiles were U-shaped. Quick smile-type lesson: U shaped smiles are when the teeth are hidden, believed by some to be an indication of a reserved personality. C shaped smiles are the ones you see on magazine covers, exposed pearly white teeth. People with C shaped smiles are generally regarded as more friendly and approachable. Of course you could throw that theory out the balcony, I'd support you because my smiles are usually U's.
• Most people frown way more than they smile.
• Women have this funny way of twitching their eyebrows when they smile. Men tend to raise their eyebrows slightly and bob their heads back ever so slightly.
  
• I really need to learn how to use my spare time effectively.