If I recognize a bottle, then I will usually just order that. Otherwise, I usually just pick a red wine from somewhere in the low-middle portion of the wine list... it has to satisfy two important criteria:

* It has to be a word I can pronounce
* Ideally, it's not the absolute cheapest wine on the menu

I make sure to order with extreme confidence, even though I really have no idea what I am doing. If it's an important meal though, I may ask for recommendations from the waiter for a good wine pairing - although that risks an expensive rec from the waiter, which I would then feel obligated to order.

When you have to order a nice bottle of wine at a restaurant, what do you pick?