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.