Skill? Luck? Nobody knows exactly why, but you are able to change  and shape conversations like no other.

While interacting with a creature you have met before, you may use an action and speak the phrase "Oh hi" followed by the creature's name if known. This creature must be within 60 feet of you, be visible to you, and also share a language with you. The creature must make a Wisdom saving throw with a DC equal to your 10 + your charisma modifier + your proficiency bonus. On a failed save the creature becomes charmed by you for two minutes. When this effect ends the creature does not know that they have been charmed. On a successful save the creature becomes aware that you have attempted to charm it in this way. You may use this feature up to twice per long rest.