Maggie GyllenhaalAs the holidays approach, Taylor Swift and Jake Gyllenhaal will likely split time between their families again like they did for Thanksgiving. But what traditions will Swift be in for if she celebrates with Gyllenhaal's family in New York?

According to Gyllenhaal's sister, Maggie, the family tradition is to relax, spend time with family and enjoy lox bagels for breakfast.

"I'm Jewish, so we already celebrated Hanukkah. For Christmas, we just have time off. We'll be around the whole time and have a real New York Christmas," Gyllenhaal explained at the Beauty & Essex restaurant opening in New York.