This may just be a random street shot, but it also suggests a potential story about to occur when these two people who aren't paying attention walk into each other. They each pick up the other's identical looking iPhone, thus creating the basis for a stereotypical romantic comedy that my wife will INSIST I take her to.
Shooting a mix of people and not making it look way too busy with focus on character. This does it. The composition is nicely balance between the four subjects, with the lady playing the lead role. (commenting, none voter)