Game time. The name of the game is Word Association. All you have to do is put the first word that comes to your mind when you read the poster-above-you's entry. So it would work like this:
I put Fish.
The next person might put "Carp". And so on. The first word is:
Vacuum
I put Fish.
The next person might put "Carp". And so on. The first word is:
Vacuum