Highballs - those that contain alcohol and one mixer over ice - tend to be lower in calories than multiple-ingredient drinks that are blended. Don't be afraid to ask for drinks your way - with diet mixers like tonic and soda. Watch for those ultra-cool "signature" martinis that are all the rage these days. Chocolate martinis can top 400 calories, and a Key Lime Pie martini can be a super diet-buster with all the creamy ingredients and graham-cracker-rimmed glass. All the sugar in the juice, simple syrup and even on the rim can make a drink sweeter than dessert! Make it a real happy hour for your diet by ordering lower-calorie cocktails like Bloody Marys, Mimosas, light beers and wine spritzers. Turn that beer belly into a bikini-ready belly!