How to Tell a Bosnian From Anybody Else in the World

I was waiting for my flight in the Vienna airport at an overcrowded bar/cafe.

A guy sat down at my table and ordered an espresso and a Coke.

Then he lit a cigarette.

"Are you Bosnian?"

I freaked him out by the question. "How did you know?"

"It wasn't the cigarette, or the expresso, or the Coke. But all three together are a dead giveaway."