Improved Deception +7: This item makes your weapons hard to focus upon and thus provides a +7 Competence bonus to Bluff checks. In addition, while using this item your weapons have a chance to envelop the target in darkness, making them vulnerable to Sneak Attacks for a short time.
Bluff +7: +7 Competence bonus to Bluff.
Deception +2: +2 Enhancement bonus to hit and +3 to damage for any hit that would qualify as a sneak attack.
Seeker +3: +3 Enhancement bonus to confirm critical hits, and damage (before multiplier) on critical hits.
If the tongue of a liar is effective, then their hands can make light work.