Using a camera to stop or blur a moment of action is not our only choice in time. We can also choose to stop or blur human reactions, expressing how they feel at the moment. I was just about to leave Montevideo's Old Port Market when a Samba band entered the hall -- brass blaring and drums pounding. After being persuaded to participate, this woman's reaction becomes pure pleasure as she begins to move to the Samba's beat. The gyrations of the drummer and the clapping fellow at right add context for meaning. This shot was made indoors, without flash, at 1/50th of second. She was moving a bit too fast for me to completly freeze her reaction, which adds even more feeling to this picture. The very slight blurring implies a sense of spontaneity that helps define the moment.