You look green

Surreal experience. The other day, I was at the gas station picking up some donutty breakfast and drinks. At the end of the transaction, the clerk asked if I wanted a bag. Nothing unusual here. I tell him, no thanks (because I as only going back to my car. I had three items and my arms weren't full). He says to me, "You look like a green person."

What do you say to that? Do I look like a hippy or a bohemian artsy chic? I thought I looked like a "normal" person. This isn't the 60's - how do you tell hippies apart from everyone else these days?