Source: Unearthed Arcana 38 - Feats for Skills

Your nimble fingers and agility let you perform sleight of hand. You gain the following benefits:

• Increase your Dexterity score by 1, to a maximum of 20.

• You gain proficiency in the Sleight of Hand skill. If you are already proficient in the skill, you add double your proficiency bonus to checks you make with it.

• As a bonus action, you can make a Dexterity (Sleight of Hand) check to plant something on someone else, conceal an object on a creature, lift a purse, or take something from a pocket.