You have mastered the art of seduction. Whenever an adversary looks at you outside of combat and you interact with them they must make a contested Charm check. If they fail they fall under your charm and for 24-48 hours they can't stop thinking about you and have a +1 auto-miss on all rolls.
Discussion
You have studied the vast history of most of the races in the Central Realm. Choose three races and when making a Knowledge/Recollection check on them you roll with a +1 bonus die and a +1 auto-hit die.
Oh... a very interesting Expertise for sure! You could make some very interesting characters using this expertise.