Humans are perhaps the most common race in Pathfinder: Kingmaker, and as far as gameplay goes their watchword is "versatility". They have no set roles, instead gaining bonus skills, attributes and a feat for you to distribute as you wish. They excel at nothing naturally, but their customization makes them capable of specializing wherever you need them to, making humans a good pick for just about any class, especially for players who have a specific build in mind.