First, you can give your sister a cute little bear, such as a fun shy bear, and then tell her that you like the relationship with her over the years, and that she brings you happiness like a little bear, and then tell her that you will always be her favorite brother. It is best to hope that this little bear can bring her warmth and happiness when she is in a bad mood, and your sister will definitely be very touched!
Secondly, you can also consider giving her a more memorable birthday gift, such as a real doll, a luminous pillow, a color-changing mug, or a crystal music box made with your sister's photo. These gifts can be customized and are permanently collected. Giving your sister a special commemorative gift!
Finally, you can give your sister an exquisite trinket, such as a necklace made with her name, a ring engraved with her name, an agate bracelet made with her name, etc., which are beautiful, generous and fashionable. Girls like them very much. Then say some birthday wishes to your sister, and she will definitely be very touched!