Click on the tool about halfway down your toolbar, and then click and drag until a bounding box surrounds the entire body. At the very bottom of the toolbar, you'll see a section labeled Options; click on the button in the lower right corner, that looks like a trapezoid. This will let us change just portions of Bobo's shape instead of changing all of him.
When the bounding box changes so that you can see square dots with little line handles tipped by circular dots, you know you can widen Bobo's bottom. Just click and hold the square dots on the corners with the mouse, and drag them out on each side to pull it wider until it's as wide as you want.
