Office parties can be daunting, but with the right approach, they can open doors for new opportunities and strengthen relationships. Any office party can be challenging, but holiday office parties are particularly stressful. After all, the season brings a set of demands—including the need to be “merry and bright” when you may not feel that way. To survive this end-of-year event (and to use it to advance your career), here are three strategies that will work wonders.