I almost felt bad for the person, not as bad as I did for the guy dressed as a Ghirardelli Chocolate ice cream sundae. He had his face exposed (and he usually wasn't wearing a smile).
The sign was friendly enough (friendlier than any other sign I have ever met actually). I am not sure how happy he/she was though. Clearly, Matt and I were having fun, but tell me, does the sign look happy to you?
Matt Parker, the Las Vegas Sign and me in Las Vegas, NV-March 2011.