It is a simple and fun game, just make up exuses to what the person posts! They can be stupid, they can be funny, and they can not even make sense! Just don't be rude about it.
How you play:
One person will tell you that you were late for something or you didn't go to their wedding or something crazy. The next person that posts will make up some random exuse, and then they will post something the next person didn't do for them, and it starts all over again.
P1: You were late for my bachelor party!
P2: A tiger stole my car keys. You still owe me 5 dollars
P3: I dropped my wallet in a puddle. Go clean your room.
So on and so forth. I start.
You didn't come to my birthday party