Most anthropological linguistic research has been focused on unwritten, non-European languages. Linguists usually begin their study of such a language by learning first hand from native speakers what its rules are for making sounds and meaning from those sounds, including the rules for sentence construction. Linguists also learn about different regional and social dialects as well as the social conventions of speaking the language in different situations.
A hotly debated question in linguistic anthropology since the early 20th century centers on whether or not our languages predispose us to see the environment in specific ways. In other words, are languages filters for reality? For instance, if a language does not have a word for the color orange, can its speakers distinguish orange from red and yellow? The answer to this question is not as simple as it initially seems.