You are as charming as you are dangerous; using your natural charisma to bamboozle your foes and get what you want. Pick either Male or Female. Against targets of that gender, you gain the following benefits:
You have advantage on Persuasion Checks against your chosen gender.
As long as they can hear you speak, you can distract your chosen gender in combat. Provided that you are not silenced and an opponent of your chosen gender not deafened, you critically hit them on a roll of 19 or 20, so long as you are within 10 feet.
Once per long rest, you may cast "Charm Person" on your preferred gender without the need for any casting materials. The spell save DC is against your charisma.
This Feat can be taken again, to indicate your charm to both genders, but does not stack twice against a gender that you have already picked.