On New Year's Eve you may find yourself drinking with a Wall Streeter or two.

Best that you're prepared. These guys are experts.

Bankers drink to entertain clients, they drink to entertain themselves (when they have time), and they drink because it's tradition.

Wall Street lore has it that before Goldman Sachs went public, its London office had a cellar filled with cases of wine — one for each and every child born to a partner.

But that's just lore.

What's real is that there are rules to drinking like a Wall Streeter. Like any group, they have ideas about the way things should be done, and, more importantly, how they should be drank.