It's simple, you have choose between two options, and give new two options for next comment.
Rules:
-No double posting(double posts happens if internet is delaying and you've clicked twice, simple report your comment and Moderators will remove for you)
-You have to choose between one of two options has been given above you, and give new two for the next player.
-No same two options in range of 10 posts. That means you can't say two same options for next 10 posts.
Example:
Start: Cookie or Candy?
Ally: Cookie, Party hat or H'ween mask?
Roger: Party hat, Two or Three?
One: Two, Music or Gaming?
I'll start
Cats or Dogs?