It's different year to year, as I go from one parent's house to the other for Christmas. With my mother's side of the family, we always stay up 'till midnight to open our presents. Apparently that's a Hispanic thing to do. I had no idea that people in America usually waited until Christmas morning. Then we spend about 1-3 hours playing with our new toys. Or at least that's what I did when I was younger. I went to bed around 1 this year. :3 Usually it's just close family. But my aunt brought her new boyfriend (I'm so excited for her) along. We all played Pictionary and had lots of fun.
My father's side of the family does things a bit differently. We sing a few songs and play White Elephant. I hope you don't mind me going off tangent, but here's a funny story from two years ago. One guy was opening up his gift and ended up with a purse. And the entire time no one stole it from him. In the end, he walked out of the house with a new 'man-bag'.
The gender specific gifts can be hilarious when they end up in the right hands. 
There's also a game where someone reads a story and a gift is passed around. Every time the word 'left' is said, the gift is passed left. The same goes for the word 'right'. If I have to be honest, I like spending Christmas with my dad's side of the family. But at least my mom's side always has tons of pie!
We have a tradition where I go to bed about 30 minutes early, and my parents finish last-minute gift wrapping. 
