(Passive) [Familiar] WIS
  Possessed By: Some Humans, Drow, Halflings, Female Drow, Stoutheart Halflings, Bards, Druids, Mages, Monks, Paladins, Rogues, Warriors, Assassins, Loremasters, Sentinels, Tattoo Mystics, Twilight Huntsmen, Community priests.
  Effects:  The Appraise skill has the following Passive uses. All represent new information that shows up in the window when you examine a monster:
   * Discern Hiding Awareness (Passive): When you are Hiding in Shadows and you examine a creature, the game will tell you if that creature is aware or unaware of your presence if your [Appraise - 4] is equal to or higher than the subject's Bluff. Otherwise, you do not receive any indication.
   * Identify Monsters (Passive): The primary utility of Appraise is the ability to appraise monsters. By carefully observing other creatures and noting tell-tale signs in their behaviour, a character with a high Appraise skill can learn a great deal about intelligent creatures. Appraise is the primary skill that is used to identify the true nature of monsters who initially appear as other kinds of monsters -- a character might spot a vampire, dragon or wererat posing as a normal human, or discern that a kobold is in fact a skilled kobold rogue merely be watching the way she moves. Appraise is not the only skill that helps to identify monsters -- many Knowledge skills aid as well, and Appraise affects only intelligent creatures, but it is the only skill that allows a character to determine if a monster has class levels, or to tell a human priest apart from a human mage.
   The check to identify a monster is made automatically the very first time the player character sees the monster. The DC of a check to identify a creature's fundamental nature (telling a vampire apart from a normal human) is DC 10 + the subject's CR, whereas discerning a creature's class or level of skill is DC 15 + CR. This check is only ever made once; if it is successful, the game will tell the player that her character's knowledge aided in identifying the creature in question.
   * Sense Motivation (Passive, Unimplemented): The Appraise skill can be used to determine what a creature desires, and how it feels about other creatures around it. Learning this information requires that the character possess a Sense Motive skill of 7, plus the subject's CR, plus 1 per 10 feet currently between the subject and the PC; it's harder to discern motives at a great range, since it involves observing body language. If the player character's Appraise level is sufficient, this information will automatically appear in the monster's description when it is examined.
   * Discern Strain (Passive, Unimplemented): Strain represents the status of a follower's relationship with her leader. If a character has an Appraise skill of [10 + a subject's CR], she can see how much strain that creature's leader has accumulated toward it -- the higher a creature's strain, the more likely it is to snap and turn on its leader if something happens that should offend it.
   * Psionic Combat (Passive, Unimplemented): The Sense Motive skill is useful for discerning the psychological weaknesses of other characters, and thus plays a strong role in psionic combat. The threat range of a character's psionic attack modes increases by +1 for every full +5 Appraise a psychic character possesses.