My wife and I have 3 children, 2 of which are 6 month old twin boys. One of my favorite things these days is to make them smile (and they are just starting to laugh a bit now too). Watching their face go from completely serious to a huge open-mouthed smile in a second is just amazing. I can have a totally junk day and come home and easily forget it all when my boys are smiling at me and enjoying all the dumb noises I make. I am very thankful to have smiling, happy children.