Click the Green Flag to have the bone follow the mouse cursor. When you have the bone where you want it, click to drop the bone. The dog will come fetch the bone.
This was a project made quickly to use with a PLTW-CSP class for a quiz about reading code in Scratch. Dog costumes and sounds from Scratch Library. Stick Clipart resized from http://images.clipartpanda.com/stick-clipart-Colored_Stick.png