Your extensive training with a whip made you develop amazing skills. You have the following benefits: 

• As your action, you can use a whip to manipulate an object, open an unlocked door or container, retrieve an object from an open container, or pour out the contents of a vial. Fine manipulation is not possible, so you could not use it to uncork a vial or drink a potion. You also cannot use a whip to activate magic items or lift more than 10 pounds.
• You can use a whip to grapple or shove a creature. When doing so, you can use Dexterity (Acrobatics) instead of Strength (Athletics). A creature grappled by your whip is restrained too. Finally, a creature that you shove with your whip is pulled 5 feet toward you, instead of being pushed away.