The document discusses various techniques for adding sound, animation, and visual elements in the Alice programming environment, including:
1) Recording and adding sound files to objects so they can "speak";
2) Using the "As Seen By" function to rotate an object around another to make one object circle another;
3) Importing images to create "billboards" as backgrounds or pictures in the virtual world;
4) Adding and styling 3D text objects; and
5) Creating new events that are triggered by actions like mouse clicks to add interactivity.