Click the "New Sentence" button to reset the sentence that the program uses (your sentence is displayed in the top left. If you accidentally clicked it, click ENTER without typing anything and you'll be fine). Then, click the multiple buttons around the screen to do something with the sentence. They do exactly what they say, and when the program is done processing the data, the cat will say the results of the action. This was, again, a simple project. I'm sorry that it is, but I needed to follow the rules exactly. eventually I'll be able to have more creativity!