OH! Kind of funny story I forgot....and by funny I mean pitiful. Guess it depends on how you look at it.
We were at church and Sydney was in the nursery, Nathan was standing between Dan and I. He would nuzzle my arm, then dan's, back and forth. After 10 minutes of this, he grabbed my hand in one of his, and his dad's in the other hand. He was sort of swinging his hands and then he would draw mine in closer to him, then draw dan's in closer to him, alternately. Gradually he pulled on both at the same time. It was very casual-seeming but obv. to me, he was trying to put our hands together without actually putting our hands together!
He stopped when he had to go down for children's church then it was just Dan and I for the sermon/communion part. (kids always go downstairs before that part, so we spend half of church just the two of us)
After church, I said to Dan, "You know he was trying to get us to hold hands, right?" He said "Oh yeah, I noticed..."