Nano will tell you what the Squirrel has done. He will ask you what you want to do. You have two options: praise - Praise the squirrel for the completed behavior. punish - Punish the squirrel for the completed behavior. He will ask you if you want to proceed with training. If you want to proceed, answer yes. Otherwise, answer no to stop the process.
This is a basic simulator of the effect that happens when you praise someone for doing something and they are more likely to do it. In the Squirrel's case, praising for good behavior will increase the chances of good behavior being done. You will see that, over time, the Squirrel will, in fact, be "trained" to do more good and less bad.