Mood Bracelet

Some bracelets/necklaces/rings change of colour according to your mood. Like angry, sad, relaxed etc..

I thought that the main girl of the story could own a bracelet like this. And the guy would often look at it to know how she felt about him when they talked or met. (Because he has a crush on her). If red means the person is in love by example, the main guy could be waiting for that colour to show up for him to confess.

Like he would interprete her feelings with the bracelet. I don't know if this makes sense?