It's all Greek to me

I was at KM8 (a beach bar located 8 km outside of S'pore - it took me a ridiculous amount of time to figure out the significance of the name, by the way) last Sunday night with a group of friends. While I was sitting at a table, this obviously drunk guy(slightly stumbling)approached me. 'Are you Greek?' he slurred with a European accent. 'No, I'm American,' I replied. He didn't respond. Instead, he turned around and walked away. Yikes.