Traditionally, the first thing one Warlpiri wants to know about another is their subsection. Warlpiris often address each other by subsection name rather than by personal name, and incorporate their subsection name into their English one, usually as a middle name. When Warlpiris marry Europeans, they tend to extend the subsection system to their inlaws, starting with the assumption that the European spouse is of the correct subsection. Rather distant European relatives may find themselves classified as honorary uncles, nieces, grandparents, and so on. Warlpiris will then try to make sure that further marriages with related Europeans will adhere to the marriage constraint.