Usually six to six-and-half feet tall. Lanky but muscular a kin to soccer or basketball players (leaner). Ashen skin. Brown or dark hair, but can be silvery or white with age. A few redheads. Flattened noses a bit. Some tusks or fangs, underbite. In my realm the orcs would be closer to what half-orcs would be in other games/places.
In my realm orcs are not inherently evil.
Orcs live in locales most others don’t want to – the dry plains, the tundra, the swamps/bayous, the canyons, deserts and high mesas, the rocky steppes, and some underground areas. Orcs are very much like the First Peoples of two-hundred years ago on Earth: tribal hunter-gatherers, some farmers and herdsman. They have no written language only oral traditions. You will find orc shaman and medicine people. Orcs are native to the Demi Plane and as such only make up one to two percent of the mortal world’s population. There are some feuds to wars between the various tribes of orcs both in the Mortal and Demi Planes.
Orcs do trade with the other peoples, usually getting along better with ameya, dwarves, and elves than humans due to humans trying to take advantage of the orcs seemingly more often than not.