By now, you ought to know how to order an atmospheric cocktail at your favorite bar or club. But do you have the skills—or the tools—to make one at home? Impress your friends at your next party (or maybe some hot girl you want to get to know better?), by getting the top 10 drink-mixing necessities that bartender Brian Means, bar manager at the Fifth Floor Restaurant in San Francisco, says any worthy bartender should have on hand.