"James!" My wife's voice called from the nursery. "James, he's smiling!" I raced up the stairs and peered into the crib to see the green eyes of my smiling son.

"It's just gas." I said not wanting to believe my own words.

"No, watch." Lily ran her fingers up his belly and tickled him under his tiny arms. His little body squirmed, a grin spread across his little face, and a gurgling giggle erupted.

"Do it again." I urged. Lily complied and following the giggle a tuft of unruly hair sprouted from the top of his head.