6.
Make kissy faces at someone from across the room.
7.
Take the dip and eat it alone in your (or your host's) bedroom.
9.
Do a crossword puzzle.
10.
Stage an elaborate murder mystery.
12.
Rewatch all of Mad Men.
13.
List all the countries you can think of.
16.
Assign everyone fake names.
21.
Put a funny costume on the host's pets, or children, if applicable.