Friends are the objects of your affection. It is said that you develop feelings over time. Such feelings will become more stable after development. Of course, if you do not understand the other person's thoughts, you should act carefully. Here are some suggestions for you:
First, you do not have to give gifts to strengthen your relationship. You can often ask her out to play together and tell her all your thoughts. Gradually, she will understand you better, and then she may gradually like you.
Second, if you want to give gifts, it is best to give gifts suitable for friends. Give a creative gift, such as a crystal music box. The nice sound will remind her of you at night. A cute teddy bear is also good to be with her as your incarnation.
Third, you can ask her about her opinion on her future boyfriend from the side. When you are fantasizing together, people are most emotional and moved. Show your feelings gently, and maybe she will accept it.