I'm not sure this is the best example of when action really adds to a photograph—but it's a pretty good one. I shot this on a tripod with studio lights (Tungsten bulbs) with a little daylight coming in through a window—see the blue reflections in the glass? (I talked about this in my last post "Bad Choice of Light").
Because I wanted everything on the table to be in focus, I needed a depth of field that was long—but not the max of f•32 my 55mm macro lens offers because I didn't want the door in back to be super sharp. So with an f-stop of 16, my exposure was about 1 sec. with an ISO of 100. When Michael pours, his movement is blurred and more interesting then if I had frozen the action by using strobe lights (flash).