Lest you come out in arms, Silentshutter ............... I am not claiming that this shot is a decisive moment shot.
This shot is of a gentleman looking at one of Henri Cartier-Bresson's "decisive moment" shots. It is one of the many prints of Bresson's works which were displayed at the French Cultural Centre in Belgrade recently. I was viewing it from the inside of the Centre when that gentleman in the picture was doing the same thing but from the outside (the street). Not much of a decisive moment there, but who cares ?
Bresson's book "The Decisive Moment" is now worth a fortune but there is an online version available and it's here.