Bluff
Fast play rules

Check

Bluff is an opposed skill check against your opponent’s Sense Motive skill. If you use Bluff to fool someone, with a successful check you convince your opponent that what you are saying is true. Bluff checks are modified depending upon the believability of the lie. The following modifiers are applied to the roll of the creature attempting to tell the lie. Note that some lies are so improbable that it is impossible to convince anyone that they are true (subject to GM discretion).

Circumstances Bluff Modifier
The target wants to believe you +5
The lie is believable +0
The lie is unlikely –5
The lie is far-fetched –10
The lie is impossible –20
The target is drunk or impaired +5
You possess convincing proof up to +10

Feint

You can also use Bluff to feint in combat, causing your opponent to be denied his Dexterity bonus to his AC against your next attack. The DC of this check is equal to 10 + your opponent’s base attack bonus + your opponent’s Wisdom modifier. If your opponent is trained in Sense Motive, the DC is instead equal to 10 + your opponent’s Sense Motive bonus, if higher.

Note: Though the feint action is located here, near the rules for combat maneuvers, and while it seems like it might BE a combat maneuver, feinting is NOT a combat maneuver. The Paizo PRD is organized with the feint rules located in the same placement.

Feinting is a standard action. To feint, make a Bluff skill check. The DC of this check is equal to 10 + your opponent's base attack bonus + your opponent's Wisdom modifier. If your opponent is trained in Sense Motive, the DC is instead equal to 10 + your opponent's Sense Motive bonus, if higher. If successful, the next melee attack you make against the target does not allow him to use his Dexterity bonus to AC (if any). This attack must be made on or before your next turn.

When feinting against a non-humanoid you take a –4 penalty. Against a creature of animal Intelligence (1 or 2), you take a –8 penalty. Against a creature lacking an Intelligence score, it's impossible. Feinting in combat does not provoke attacks of opportunity.
Feinting as a Move Action

With the Improved Feint feat, you can attempt a feint as a move action.

Secret Messages

You can use Bluff to pass hidden messages to another character without others understanding your true meaning. The DC of this check is 15 for simple messages and 20 for complex messages. If you are successful, the target automatically understands you, assuming you are speaking in a language that it understands. If your check fails by 5 or more, you deliver the wrong message. Other creatures that hear the message can decipher the message by succeeding at an opposed Sense Motive check against your Bluff

Action

Deceive Someone: Attempting to deceive someone takes at least 1 round, but can possibly take longer if the lie is elaborate (as determined by the GM on a case-by-case basis).
Feint in Combat: Feinting in combat is a standard action.
Deliver Secret Message: Delivering a secret message generally takes twice as long as the message would otherwise would take to relay.

Try Again

If you fail to deceive someone, any further checks made to deceive them are made at a –10 penalty and may be impossible (GM discretion). You can attempt to feint against someone again if you fail. Secret messages can be relayed again if the first attempt fails.

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