Tummy time is the best time. Apparently, yr supposed to lay babies on their stomachs for a set amount of time every day so they can exercise their little muscles in their necks and stuff. But mostly (I think) because it is the funniest thing ever to watch. It's like this killer workout for him. He struggles and struggles and makes all these little grunting effort sounds. He sort of looks like a blind puppy wiggling around. These pictures really do not do the experience justice AT ALL.