Rule are simple, you make a wish and the next person makes a reply to that wish, then they make a wish. For example:
I wish I didn't have to go to school so I could play Osu all the time.
The next person will go:
Granted but you have no hands.
I wish I had a mountain of Chocolate
I wish I didn't have to go to school so I could play Osu all the time.
The next person will go:
Granted but you have no hands.
I wish I had a mountain of Chocolate