Skill: Knowledge: Society
Knowledge: Society is a skill that favors the understanding of civilization and those denizens therein. It could be understanding the local history, geography, or local myths; or it could using one's understanding of social norms in the stead of more active skills like Diplomacy. No matter what, Knowledge: Society and the talents it governs often rely on Intelligence or Charisma to make up the wit and culture this skill embodies.
Mechanically, Knowledge: Society is a skill that can be used in the stead of others for certain actions. It is also a 'Knowledge' skill, meaning it can be used for certain useful concepts or creatures when using the Recall Action | ◈. It's further usefulness rely on the GM and/or the adventure.
Knowledge: Society uses INT / Intelligence or CHA / Charisma by default. Diplomacy is a Primary Skill, meaning it is a major skill that can only be gained by mechanics that grant proficiency. Additionally, it is a Knowledge Skill, which means it is a skill that requires a bit of input from the player and the GM to be used effectively, as well as a little bit of intuition on the player's side to use well.
Skill Talents
These Talents can be gained during Character Progression or other means (such as gaining it from a Background, Increasing your Intelligence attribute, gaining the Expert Talent Gain Class Feature, etc).
Like all Skill Talents, these are meant to be good at anyCharacter Level they are obtained.