In need of helpful advice

Here's the bad thing about having paper-thin walls:

When the neighbors decide to have the sex, you can hear every sound, every guttural grunt and groan.

Here's the good thing about having paper-thin walls:

While the neighbors are bumping uglies, you can try to ruin their sex by making weird noises of your very own!

And so I am asking you, the reader: what kind of weird stuff should I say or do?

I intend on doing some monkey sounds, girlish screams, or random heys, but I need something more inventive.