I'm very glad to know that you will visit Beijing.Now it is cold.Sometimes it snows,you can bring some warm clothes.
The Spring Festival is the most important festival in China.There are some special traditions for you to follow.Try not to break anything.And don't clean your room on the first day.
When you visit a Chinese family,it is a good idea to bring a small gift.Usually Chinese people will give you a present in return.You must accept it with both hands.Remember to open it later.