What are your thoughts on receiving a promise ring?

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Not an engagement ring, but simply a promise ring. Some may find it silly, while some absolutely love it. Have you ever received a promise ring? We've talked about marriage, and we both agree that it's still far into the future, but we'd love to make it happen together. We're close to reaching a year of dating, and the idea doesn't seem too bad. What are your thoughts? What's the best way to go about it kaya?