So how does it feel? You've learned a bunch of phrases, some grammar, some vocabulary, and even had a drawn-out conversation with Flash (the multiple-choice quiz). Quite a rich first day of language school, I'd say.
As you can see, there's a lot to learn about ActionScript, but you can also do quite a bit with just a little knowledge. Even the amount you know now will give you plenty to play around with. Throughout the rest of this book, we'll reinforce the fundamentals you've learned by exploring them in more depth and showing them in concert with real examples. Of course, we'll also cover some topics that haven't even been introduced yet.
Remember: think communication, think cooperation, and speak clearly. And if you find yourself doing any fantastically engaging work or art that you'd like to share with others, send it over to me at http://www.moock.org/contact/.
Now that you have a practical frame of reference, you'll be able to appreciate and retain the foundational knowledge detailed over the next few chapters. It will give you a deeper understanding of ActionScript, enabling you to create more complex movies.