Moko Kauae - Mangopare

Kia Ora Koutou, he paitai tāku moko kauae. E kōrero ana ahau iti te reo Māori, e ako ana ahau.

Can someone explain mangopare on moko kauae? Is it to do with sibling rank like eldest and youngest etc Can you ask a kaitā if you want or not want something in the kauae?