Sometime in the next month, prepare some tasty vegan food for a non-vegan friend or family member. It's a nice thing to do, and it shows that going vegan doesn't have to be a sacrifice.

My favorite vegan cookbook ever is Vegan with a Vengeance: http://www.theppk.com/veganwithavengeance.html
I've also had good luck just googling "vegan + {recipe name}"

Alternate: If you're not vegan yet and still want to sign this, try preparing some tasty vegan food for yourself!

P.S. This photo is the tip of the iceberg, I have a spaghetti obsession.