Talents in Pillars of Eternity 2: Deadfire are covered on this page. In POE 2, talents acts as perks or feats, They are special features that either give a character a new capability, or improve one that he or she already has. Unlike abilities, talents can be gained from quests or through interaction with NPCs.
A Passive talent or ability is one that can be added to a character where the bonus is gained automatically. For example, a character with Snake's Reflexes gains their bonus to Reflex saves automatically.