You have to write a line that rhymes with the one posted right before you, and then you need to post a completely different line for the next person.
For example,
Person 1 posts: "What would a man's home be without his wife?"
Person 2 posts:
- Rhyming line: "Indeed. It is almost like being cut up with a knife."
- New line: "Alarm clocks are meant to be put off"
I'll start with this: "Summer is incomplete without ice-cream"