What does it mean to be American?

What it means to be American <Tab/> <Tab/>People in the United States differ greatly in beliefs, physical appearances, and heritage; yet we all call ourselves Americans. We feel prouder than ever to say "I am American," raising American flags, wearing symbolic shirts, and showing true patriotism. But what really makes us American? What is the common factor that unites us? Is it our pride in our …

…because it is a "living document." As the world changes, so can our government to fit our needs. <Tab/> <Tab/>What does it mean to be American? Surely, there are multiple definitions. In my opinion, an American is someone who is living "free", believing in his freedoms, exercising his rights established by the constitution, has pride in his country and the constant effort to make it better.