Pickpocket Variant (5e Feat)
From D&D Wiki
Prerequisites: Dexterity 13 or higher
You may add double your Dexterity to Slight of Hand checks. Other creatures have disadvantage on Intelligence (Investigation) or Wisdom (Perception) checks to notice an object you palmed in your hands. If you spend at least 1 minute observing or interacting with another creature outside combat, you can learn about anything the creature has that can be stolen.