Boys give girls rings that meet the standard. You are willing to circle her for a lifetime and want to protect her for a lifetime. It is an expression of love. It can be used to express love, of course, this is not the only choice. I will introduce two more for you below.
First, giving a ring is of course good, but there are many types of rings. What is the best? I suggest you choose a couple's ring. In this way, if the girl agrees, it seems more romantic for two people to wear it together. It is best to have a style that can be engraved. Compared with ordinary rings, it is more memorable and romantic.
Second, in fact, if you want to express your love to a girl, you just have to make her happy. Girls love beauty, so choosing beautiful jewelry is more likely to win. I recommend you a sterling silver pendant with the moon representing my heart. The necklace expresses a feeling very implicitly, which is very suitable for you!
There is another gift that you must not miss to express love, and it is sweet chocolate. You can choose the kind of heart-shaped chocolate that can be customized with engravings, engraved with "I love you", and the girl will understand what you mean without you saying it!