It is a very happy thing to have a child at home. Although it is not your own child, it is also very good to have a lovely niece. It must add a lot of laughter to the family. Children must have gifts on their birthdays. As an uncle, you must give your lovely niece a good gift. I can give you some small suggestions:
1. Give her a set of dress-up Barbie dolls. Girls like dress-up toys. Barbie dolls are also famous toys all over the world. I believe she will like them very much.
2. Give her a big teddy bear. Plush toys are the favorite of all children. Big toys will not be afraid when sleeping at night. She will definitely like such birthday gifts.
3. Of course, you can also give her a set of books, but it is always what children need most. I believe that she will be very grateful for your knowledge books in the near future.