Something that I do whenever I'm anxious at airports, is i like to just observe the people around me. I don't really pay attention to what they're doing so much, but i think about why they're here. I make up stories to where they are going, where they're coming from etc. It passes the time, but is most importantly gets my mind away from being anxious. Also, there's pretty much always things going on at the airport - with so many people walking around etc, its pretty easy to distract myself.
Hope this helps a little to calm those flying nerves.
And when in doubt ... listen to music!