The round light shapes on the wall are reflections of the sun shining in a window on the other side of the plaza. This was a day with great light and great shapes.
While waiting in the car, Liam was taking a picture of me but was totally unaware of me taking a picture of him, with the GR in my right hand, at the same time. When he showed me his picture of my face, I showed him my picture of his face :)
This is Liam’s picture taken at the exact same moment:
Camera: iPhone 4S ISO: 64 | Aperture: ƒ/2.4 Shutter speed: 1/60s