Inside History on Instagram: "In Papua New Guinea, the Asaro Mudmen practice a form of greeting that can appear aggressive to outsiders. Rather than exchanging handshakes or smiles, they acknowledge one another through loud shouts, yells, and intense vocal expressions. Although it may sound like anger to those unfamiliar with the culture, this behavior is a meaningful social exchange rooted in tradition, identity, and community bonding. The volume and intensity are intentional and symbolic, expr