Step One:

Smile!

Step Two:

Order a pack of smileys from our friends at Sticker Giant (or get them at Staples)

Step Three:

Tag a smiley on a total stranger who needs one and pass along some for him/her to tag someone else

Step Four:

Tell us what you did and where on Twitter

Step Five:

Repeat steps one through four until you run out of people who can't use a smile.