Suppose I'm a rogue with the Expert Tactician feat from Sword and Fist and the Quicker Than the Eye feat from Song and Silence. If I'm in melee with an opponent and use a move-equivalent action to Bluff my foe and get him to look away, can I do the extra attack from the Expert Tactician feat? If I do that, can I then use my remaining partial action to run away? What happens if I use my partial action to use Bluff again? Can I then make a second free attack?
An opponent who fails to detect your Bluff when you use Quicker Than the Eye does not see the partial action you take after the Bluff, so your opponent is denied his Dexterity bonus against your melee attacks. If you also have the Expert Tactician feat, you can make an immediate free attack against a foe who failed his Spot check against your Bluff. Once you do so, that opponent is observing you again, and that opponent will observe you if you try to run away after the free attack. Because the attack you make by virtue of your Expert Tactician feat is a free action, you could attempt to use Quicker Than the Eye again, but your opponent should get a bonus on the Spot check. The second Bluff check also is a move-equivalent action, so you would be done acting for the round. If the second Bluff check succeeded, however, your opponent would once again not see you, and you could make another free attack by virtue of your Expert Tactician feat.