I don't display images at the reception myself, but was at a wedding with a colleague who does. During the dinner period-when no one is having their photo taken with mouthfuls of food-he was setting up the images he wanted to display and then set up a monitor for people to view at their leisure throughout the rest of the reception. It took just a few minutes and he didn't have to man it the remainder of the night--pretty easy.

And many photographers will cover an event with an assistant so they can still be taking care of their duties while someone else mans the slideshow of images.