Click on the Free Transform Tool
in the Toolbar; we can use this to make the pumpkin taller or shorter, fatter or thinner. We can also rotate it or make it fatter on the bottom than on the top. Lets go ahead and give that a try; at the bottom of the toolbar, you should see four buttons. Click on the one on the right and bottom, the Envelope button. That way we can just enlarge individual parts of the pumpkin, instead of the entire thing.