The meaning of “smiling over her shoulder”

Question

https://genius.com/James-arthur-say-you-wont-let-go-lyrics

[Verse 1] I met you in the dark

You lit me up

You made me feel as though

I was enough

We danced the night away

We drank too much

I held your hair back when

You were throwing up

[Pre-Chorus] Then you smiled over your shoulder

For a minute, I was stone cold sober

I pulled you closer to my chest

And you asked me to stay over

I said, I already told ya

I think that you should get some rest

We have "look over your shoulder" but I could not find the exact meaning of "smile over your shoulder".

Does it mean the girl is walking away from you , stopping for a moment , turning his head , looking at you and then smiling?

Answer 1

Smile over one's shoulder means what you suggest. While lyrics are usually a bad source of normal English, in this case it means "you looked over your shoulder and smiled". Note that the girl has just been "throwing up" and the singer is, therefore, standing behind her and holding her hair to stop the vomit from making it dirty.