Two-Weapon Feint

Combat

You use one weapon to distract your enemy while slipping another past his defenses.

Prerequisite: Dex 15, Int 13, Combat Expertise, Two- Weapon Fighting.

Benefit: While using Two-Weapon Fighting to make melee attacks, you can forgo your first primary-hand melee attack to make a Bluff check to feint an opponent.

Source: Ultimate Combat