Chinese Association of Idaho State University (CAISU)
The first thing to do is to scout out your evening. Paleohacks Cookbooks Review Find out in advance where you'll be going, and check online. Most restaurants and bars have their menus online, and you'll be able to review the different options, and find the best choices.
Next, stick to your guns. People might tease you for ordering healthy, or they may push you to indulge "just this once" - not out of spite, but out of a desire to share a bit of naughtiness in the culinary sense. Understand that it's not an attack, and they're not trying to sabotage you. Smile, but don't let them see you sweat. Order how you want to order.
Third, when it comes time to order a few drinks, know your limits, and not just in terms of alcohol consumption. If you want to keep the calories low, you'll want to find a drink that's light. Skip the rum and coke or the heavy beer, and opt for vodka and tonic. Some people will say, skip the booze altogether, but unhelpful advice like that will be more likely to lead you into temptation. Find a low-cal drink that you enjoy.
In the end, remember that the point of the evening is not to eat and drink, as much as it is to catch up with friends and enjoy the company. You can certainly do that, and stick to your diet - as long as you plan ahead, and stick with your plans.