I had my shower this past weekend. DH and the guys (some spouses of family came too) ate a little early, then went out into the backyard to play by the lake and go tubing out on the motorboat. They also played pool, foosball and ping-pong downstairs while the girls ate, played some shower games and opened presents upstairs. So they were "there" but not really at the shower.
DH did come to the actual shower for a bit, as his cousin wanted to give him a Daddy to Be Kit that he'd made. It included a hazmat suit, plastic gloves, air freshener, tongs for diaper changing, a mask, goggles, etc.
We sat down after all the guests had gone, and I showed him all the presents we got.