If you have it on the histogram view, you can use the zoom in button to 'hide' the histogram and data and inspect the shot with a full screen photo view. Next shot reverts back to the shot + histogram again. It still takes a button press but at least it is the button under your thumb, not the harder to get to info button.


As for tips - for a group shot I would tend to get the exposure right first, then focus on directing and trying to get a shot with everyone's eyes open.


Hope that helps!