What's a non-douchey drink to order?

[MissJeanLouise]

I'm meeting an old friend at a bar after work. I looked at the bar's website and their wines by the glass suck, and I am not much of a beer drinker. What's a drink order that doesn't sound stupid, isn't too frou-frou, but makes me look like a sophisticated woman of the world?

Glass of milk?

ETA: In case you cannot tell, my last few days of work are not particularly productive ones.