Everyplace I have ever been has been very similar. People are polite, helpful, and courteous. Strangers on the street smile and answer your questions. People eat three meals a day, relax in the evenings, and spend time with their families. Kids play sports in the afternoon, go to school during the day, and find every opportunity for mischief.
Aside from the language, the only way to tell that you're in another country is by the 'little things.' People own different cars, live in different types of houses, wear their hair differently, and root for different sports teams. The roads and sidewalks have a different feel to them, police officers wear different uniforms, and road signs use different fonts and colors.
American Samoa is indeed home to an indigenous culture. There is no tourism industry to speak of, and people here walk around town going about their daily lives. However, the little American things around us certainly make us feel like we're at home.
A trip to the post office is like any at home, road signs are cut from the same cloth, and police officers even walk the same way. Although we're still in a different world, American Samoa is home to a certain, vibrant familiarity. If only the sun weren't so hot.