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You may roll an additional d20 when spotting hidden foes and concealed dangers and may take the higher of the two results.

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You are gifted with the ability to see better than normal in dark conditions. You reduce all concealment granted by darkness by one step.

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You may roll an additional d20 when discerning lies, falsehoods, or attempting to see through a disguise and may take the higher of the two results.

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You are trained in finding the subtle clues left behind while following a trail. Opposed by Survival.

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Your perception gives you subtle clues in a dangerous situation. You always gain a move action during the surprise round.

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You detect lies when they are spoken. You do not automatically learn the truth, you simply learn if the statement is a deliberate deception, i.e., the speaker knows one thing for certain, and is saying another on purpose to fool you.

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You are gifted with the uncanny knack of perceiving the world around you without using your eyes. You can perceive the shapes and sizes (but not subtle details, like writing) of all objects within 1 square of you.

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You have a knack for spotting clues in the strangest of places. You may make a Perception check opposed by a character's Persuasion and learn a "clue" about their true nature (whether or not that nature is even known to them).

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You are gifted with the uncanny knack of perceiving the world around you without using your eyes. You can perceive the shapes and sizes (but not subtle details, like writing) of all objects within 1 square of you.

You have are a master at spotting clues in the strangest of places. You may make a Perception check opposed by a character's Persuasion and learn 1d4 "clues" about their true nature (whether or not that nature is even known to them).