Navajo culture is not aggressive. It involves a lot of non-verbal communication. People come to the reservation and do a lot of talking. They don't care. They don't understand that this is part of the culture.
People listen and observe.
They don't immediately respond verbally. They articulate in a respectful manner. They don't use sarcasm. That's one thing we do have in common with other tribal groups. Navajo culture is based on spirituality.