Vesper Martini. Shaken, Not Stirred

You carry yourself with the effortless poise of a legendary spy, your words smooth as a perfectly mixed drink. You gain the following benefits:

• Increase your Charisma score by 1, to a maximum of 20.
• You gain proficiency in Persuasion. If you already have proficiency, you instead gain expertise, doubling your proficiency bonus for Persuasion checks.
• Once per short or long rest, you can gain advantage on a Persuasion check after seeing the roll but before the outcome is determined.
  This represents your ability to “shake” the conversation and redirect it with perfect timing.
• Smooth Operator: When you succeed on a Persuasion check against a creature that can hear and understand you, you gain a +2 bonus to your next Charisma check made against that same creature within the next hour. This bonus cannot stack with itself.