1. They wake up ready to have a good time.

2. Personal space is basically non-existent.

3. They can be pretty straightforward about their feelings toward you.

4. Walking in a straight line is nearly impossible.

5. Incoherent speech is the norm.

6. It's never a bad time to sing karaoke-style.

7. There will be lots of hugs and kisses.

8. Messy eaters here, there -- everywhere!

9. Spilled drinks are inevitable.

10. A wardrobe change may or may not be mandatory.

11. There is a thin line between being the life of the party and an emotional wreck.

12. By the end of the night, they're out like a light.