They get together, with their family, then there boyfriends and girlfriends come over and they do it
You should wear casual attire when you meet your boyfriends family for the first time.
Bake them food from their culture like if there American bake them the natural food Americans eat or bake them food they like . Like if they like mashed potatoes make them that
No - only those family member that are close to you. In a big family, you can probably tell your siblings that you're only buying for their children - not them personally. They should understand that Christmas is for kids - who are excited to receive gifts. That would ease the financial burden.
That depends on if it's necessary to deal with them to continue dating him.
get gifts for your family
At home with family
not without your parents permission, but if they do, they should lose custody rights.
Get together with family and friends.
Giving a gift for the twelve days of Christmas is up to each family. Personally, I believe it would be fun, but it might get a bit costly. I think doing something nice for each member of the family for the twelve days of Christmas is a good alternative.
You should eat dinner and lunch at your house so u can celebrate your whole family
It depends. It's really up to the family, my family never open presents on Christmas Eve but I have a friend whose family open half on Christmas Eve and half on Christmas Day. it all depends on you and your family, really. There is no right or wrong answer.