This is something that we always keep in our Primary Bag (that we tote around our lessons, pictures, etc. to church each Sunday) and if we have extra time at the end of class for some reason or another, it's a great activity.
Usually we will talk a little about the lesson and ask each child to say something about the lesson before we can throw them the ball. For the lesson "I Have Feelings", they were to say something that made them happy, show us their 'happy face' by smiling really huge and them we could toss them the ball. I love using this game because it's helping them to remember what the lesson was about, they apply it to themselves, and they have fun without being overly active/irreverent.