9. Conversations are bound to happen, and you don’t really want to piss the wrong person off.

8. Anytime you like someones opinion, or enjoy something they said, you can ask them to be your friend.

7. Power users and celebrities–people in front rows, and players on the field.

6. Voting is ‘booing’ for bad, and ‘cheering’ for good.

5. Global-Positioning becomes beer-stand bragging rights, as in “I was here first”.

4. Status updates are affirmed by simply yelling out for everyone to hear.

3. Hand signals, can be used as direct messages.

2. If you write something on a cardboard sign that is less then 140 characters and it’s really funny, there is a good chance it will be seen by millions.