Skip fried foods, such as bite-sized egg rolls, and mayonnaise based sauces or spreads. Instead, chose bread, fruit, vegetables or crackers. If you have a weakness for cheese, limit it to two or three pieces. Head for the boiled chilled shrimp, which are low calorie, high protein. They'll help fill you up and help you resist eating more fattening foods.
Alcoholic beverages contain calories, too, and have very little nutritional value.
Remember that alcohol can weaken your will power when it comes to resisting fattening food. If the drink that's available is eggnog or sugary punch, bring your own low-calorie drink. Even when you can't chose the menu at a dinner party, there are a few adjustments you can make to keep calories in check. If seconds are mandatory with your hosts, make your first helping very small. Take skinless white meat rather than dark meat with skin, which has the most fat and calories.