For my tech. mavens: Is there a site for track pad use instruction for a first-time Mac book owner?

I bought a Macbook Air on Monday at the Mall. The Apple store was mobbed and I got only minimal tips for using the track pad. I can use trial-and-error, but I also have to get used to OSX Lion. It is giving me a headache. Any thoughts?

(My first trip to a mall in six months. We got a flat tire on the highway in a rural area, I had to pee in the woods, and my cell phone had no charge. Lucky that my daughter was with me.)