Why would she look around the room when someone said goodbye to me?

My friend said goodbye to me and said my name as I was a few metres away and I noticed this girl slightly look around the room to see where I was before we made eye contact. Why would she Look to see where I was? I already hugged her and said goodbye earlier but at that time I wasn’t leaving right away I said to her I probably will still be around as she went off to do something quick.
I think she’s attractive and I might like her a little but wondering why she would look around as someone said my name?

Why would she look around the room when someone said goodbye to me?
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