We don't want giggles. We don't want chuckles. We don't want that weird throat noise people make when they start to laugh and then try to stop. Today is all about big, huge, gigantic, raucous guffaws from the inner core of your very being. Today is Belly Laugh Day.
It's very easy to celebrate today...just laugh! But make sure it's as obnoxiously loud as possible. Slap your knees, crouch over, gasp for air, and make a giant spectacle of it.
If you're good enough at it, you might encourage everyone around you to do the same. Or you'll get stony silence and odd glares. It can really go either way.
To help with your cackling crusade, use a goofy laughing pen to help you accomplish your goals.