Everyone's expressions show a different emotion, almost what they're thinking. My favorite is the woman on the right, clutching her work and her phone, smiling a little to herself... I wonder if she's thinking about someone special?
Well done in capturing this perfect moment; it's so rare to see when we look at somebody else - we always seem to miss that 'split-second-thought' as it crosses someone's mind - such a sad thing, but you've managed to capture lighting in a bottle; and in turn we get to see her smile like this and wonder who she's thinking about. It's right there and it's perfect.
(That, or she noticed you were taking a photo, and got embarrassed.)
(But that's not what comes to mind when I look at this.) : ]
Yes, that woman definitely brings something to this photo! I was going to photograph the two men on the left but when I saw her I included her in the frame. I don't think she noticed me taking the photo. I think you're right that she was thinking about something. And we will never know what; we can only speculate. That is the magic and beauty of this kind of photography that keeps me doing it. It's a kind of addiction!