Once you've completed the T. rex, he'll name it Charlie. Then he'll want you to make prey for the predator. So you'll form an apotasaurus--with fangs. When the apotasaurus is finished he'll realize that Charlie can't possibly eat the entire apotasaurus by himself, so you'll make him a velociraptor. With the extra clay, the child will want you to make another velociraptor.

When the sculpting is over, he'll ask for a game for the dinosaurs to play--when they're not pre-occupied with finding food. So, you roll a clay ball for the dinos to play soccer with. After they've had their fun, the child will ask for a camera. If you give him a camera, he'll want to take pictures. He'll ask you to help him. If you help him, you will find yourself arranging dinosaurs in various formations. Taking portraits of the dinosaur will remind him that he would like to take a self-portrait. He will start by taking pictures of his teeth.* When he gets bored, he'll want you to pose.

Then he'll want to practice his photography skills by taking a group shot. This will remind him that he wants to play with his new friends, the dinosaurs, and he'll ask you to make him another dinosaur...

*Not pictured, for obvious reasons.