That's what I did on my lunch break today. It's actually quite remarkable what you can see in people by just watching them interact.

1. Confidence
2. Sense of Humor
3. Insecurity
4. Sadness
5. Caution
6. Carelessness
7. Happiness
8. Infatuation
9. Disrespect
10. Care

... to name a few.

A few other noticeable items:

• The girl trying to walk normally with a broken flip flop
• The couple debating about whether right or wrong can be determined (she said yes, he said no)
• The guy who biffed catching the football because he noticed the pretty girl with the broken flip flop
• The squirrel calculating how/when to snag the cookie crumb on the sidewalk, without getting trampled by the mob of students heading to class
• The four people, in 20 minutes, that I overheard say, "Thank goodness [or some variation on that phrase] it's Friday!" Amen to that!