Create some societies of passionate, tough people that can headbutt Dwarves and sucker punch Elves.
Sure, Half-Orcs are outcasts of society, but they are so much more. We take inspiration from some tough groups from the real world to flesh out their views and personalities, theorize the government and laws that groups of Half-Orcs would have to help them survive in a fantasy world, and create a tool that helps out with the physical characteristics of a Half-Orc character.