Simple.  All you have to do is post something that has something to do with the last post.

 

There was a baby born at the park yesterday.

And the end he died too.

L's ghost comiiiiing ~~

L's ghost feeds off melted ice cream which BTW is what ice cream is when it's dead.

 

....that was bad p=

I got that ice cream

Which is kind of.. gross.... o-o;