For me, one of the most fascinating things about having twins is watching the interactions between the two of them -- the ways the play together, they ways they fight with each other, the way they get excited when they see each other, the way the react to each other -- it's really fabulous. Anyway, one of my favorite interactions is when someone wakes up from the nap. I will bring the baby into their playroom, and when his brother spots him, they'll get huge smiles on their faces, start babbling at each other, and then crawl towards each other to play. It's so adorable. I tried capturing it on video -- I missed part of it, but you should be able to get the general idea. Enjoy!