This is pretty cool. A Twitter operated billboard whose face responds to the amount of smiley face emoticons that are posted in tweets worldwide. Mostly smiley’s gets the billboard smiling. Mostly sad faces make the billboard unhappy. Whenever the smileys dip below 50% coupons are given out to cheer up the masses. From Crispin Porter + Bogusky, you can find it at the corner of West Broadway and Grand in New York City.