My brother and I set our alarms and get up very early.
Then we sneak upstairs and snoop through the stockings.
To pass time we make coffee for our parents and get breakfast stuff ready (ie get the bacon out to defrost, get the pans ready on the stove etc).
After enough time has passed we wake up our sisters and get them to wake up our parents...
Then we all open our presents. My brother and I sit on either side of the tree and hand out presents.
Dinner is either at our house or my aunt's house (her and my mom switch every year). Since this year it's my aunt's turn, we will pack up all of the presents for other family and take it to her house. After dinner we exchange presents and open those.