Ask the host...

Ask the host, "Who threw this cheesy party, anyway?"

http://www.jokebuddha.com/joke/Ask_the_host_Who_threw

Play a lullaby on a...

Play a lullaby on a kazoo during a speech (singing a lullaby works okay, too)

http://www.jokes-db.com/jokes/boring-party-jokes

Hang your head ...

Hang your head and whisper one-word answers to questions.

http://www.jokes-db.com/jokes/boring-party-jokes

Cough all over guests...

Cough all over guests, then exclaim, "Doctor says a few more years and I`ll be cured..."

http://www.jokes-db.com/jokes/boring-party-jokes

Bring a novel ...

Bring a novel and curl up in a corner with it.

Turn cartwheels across ...

Turn cartwheels across the floor. If you can turn a back flip, all the better!

http://www.101funjokes.com/boring_party_jokes.htm

Ask the host...

Ask the host, "Who threw this cheesy party, anyway?"

http://www.jokes-db.com/jokes/boring-party-jokes

When getting food...

When getting food, pile everything onto your plate in heaping servings - make sure to use your hands!

http://www.jokes-db.com/jokes/boring-party-jokes

Use a different accent

Use a different accent every time you talk to someone new.

 

http://www.jokes-db.com/jokes/boring-party-jokes

Speak in a strange...

Speak in a strange foreign accent. when someone asks where you are from, name a country only you can pronounce.