Like I have said before, the best part of having twins is seeing them interact with each other. If one is crying, the other will go up to her and give her a hug and kiss. And they will also randomly just kiss and hug each other. I have also noticed this last week, that they actually play with each other. They will chase each other around crawling while screaming and laughing. They will also stand on either side of the coffee table and play peek-a-boo. I was able to record some of their peek-a-boo game, but it was already at the tale end.