You can use a fake attack to cover more nefarious efforts.
Benefit: As a standard action, make a melee attack against a target. If you hit the target, you deal no weapon damage. You may, however, make a Sleight of Hand check to remove one item from the creature even though it may be aware of you and is in combat. Determine the success of the item removal, and if the target notices that you took something, using the standard Sleight of Hand rules.
Adventurer’s Handbook: Genius Guide Volume 1