Namjoon: You make hot chocolate with mountains of ice cream and glitter sprinkles and then you get in the car with blankets and drive around to look at Christmas lights.
Jin: He's got to finish baking Christmas cookies. He stays up late making dozens and dozens of cookies and you sit up with him and eat at least a dozen yourself while you both sing along to Pentatonix.
Yoongi: He's not super into the Christmas spirit but he's happy when you're both sitting smooshed together in a little armchair, sipping milk and Bailey's and watching It's a Wonderful Life.
Hoseok: He adores Christmas. He finishes up wrapping presents and then he's too excited to sleep so you watch the Grinch and then go outside in coats and scarves to dance in the moonlight.
Jimin: You go caroling at a retirement home. It takes you all day because everyone invites you in for cookies and he's too polite to refuse. All the residents squeeze his cheeks and comment on how handsome he is.
Taehyung: You have a tradition where you go out for dinner and anonymously pay for someone else's meal: a single mom out with her kids, a college student eating alone, an elderly couple.
Jungkook: He's perfectly content to sit by the tree for hours (as long as he has a constant stream of cookies.) In the evening, you drink eggnog and triple sec, dress up in a pretty red dress, and dance in the glow of the tree's lights. After you go to bed, he eats the cookies you left for Santa.
