Someone says 'insert coin' like they're putting their money into a vending machine. The person who posts after them tells them what they get back! Then they say 'inserts coin.'
Example:
Person 1:
Person 1
*Inserts coin*
Person 2:
Person 2
Person one gets a Kiki Kitty Plushie!
*Inserts coin*
*Inserts coin*
Person Three:
Person 3
Person two gets Ian's hat!
*inserts coin*
*inserts coin*
And so on.
The only rule is that whatever the person gets has to have something to do with Gaia. It could be an item, something on one of the NPCs, something in the layout, games, or Gaia's store. It just has to have something to do with Gaia.
Kay?
Go.
*Inserts coin*