Christmas parties are a great opportunity to show off your festive spirit! For men, a classic look is a red or green sweater paired with dark pants. You could also wear a suit or tuxedo with a festive bow tie or scarf. For women, a stylish holiday dress in red, green, or gold is a popular choice. Accessories like statement jewelry, hats, or scarves can also add a touch of holiday cheer. Remember, the most important thing is to have fun and make memories with friends and family.