The color in this image is striking! I love the way the background shapes, lines and colors bring so much energy to this. The expression on the woman's face is interesting and has that candid feel as she seems to be present only in her own moment and thoughts. What lovely contrast between the detail of her face and the blurring of the background! The image seems to demand that the viewer ask who is she and where is she going?
Clearly an urban setting, the inclusion of other people further helps to define the place. But I still find myself wishing that the person to the left of the frame were not quite so prominent since it draws the eye away from the subject.
I see that some of your commentators interpreted the blue object at her neck as a water bottle...but it's not entirely clear to me that it is. It seems possible that it is, instead, a breathing device for a tracheotomy patient. The ambiguity is at first intriguing...then annoying since I can't really tell. It seems that what that is would make a huge difference in interpretation of this subject. So, too, would knowing if she's responding to a "call" or just checking traffic before she crosses the street...but that matters less to me and your title makes me willing to accept her expression as one of response to something other than a passing bus.
Overall, a compelling image because the subject is so strong and presented so well.