Now that Thanksgiving has passed and transplanted Washingtonians are flocking back to the city, it’s the official start of holiday party season. And whether it’s an office party for your lobbying firm, an ugly sweater party with hipster friends in Columbia Heights or a black tie gala in Georgetown, these local partying experts we’ve gathered have a few yeas and nays to dole out on how to act, what to wear and how to woo someone under that strategically placed mistletoe.

