This song is about a person trying to get the attention of the one they love.
But, the person really doesn't have a clue.
The person is really in love with this person and they think the world of them.
They want to be their lover so bad if the person would have a clue that they really want to be with them.
They would do anything for this person, even sacrifice their life.
Reminds me of a person falling in love with their best friend and trying to them.