Do you ever play games with your children? I don't mean video games, I'm talking about board games or other games away from the screen.
I try to make sure there is quiet time every day, whether we read some stories, listen to music or just sit around and talk as a family. Sometimes it doesn't happen, but I also try to make sure we play a game as a family (or as a portion of the family) at least a couple of times a month.
One sit down game he did enjoy was "Feed the Penguin", and even that got a little rough near the end.
The latest games we like to play are matching up games. My youngest, being 2 and obsessed with Thomas the train, loves to play a railway matching game I bought when my oldest was only about his age (so 10 years ago now).
Until then he enjoys trying to play the other games alongside as a "team" or just doing his own thing while the older ones and I play. I can't wait until he can join in and play with the rest of us.