Cloak the Mind (3.5e Feat)
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Cloak The Mind [Psychic]
Prerequisite: Resilient Mind
Benefit: Your mind cannot be read by normal means: your mental privacy is protected by the equivalent of a mind blank spell (though this power, unlike the spell, protects only against mental divinations, not magical location or mental attacks). Furthermore, you can create a fake persona which masks your alignment and surface thoughts, giving false information: this requires a Bluff check opposed by the Sense Motive ability of anyone attempting to read your alignment, magically detect lies, read surface thoughts etc. If your opponent wins this check, his/her mental divination attempt will simply fail, rather than report false information: your mind is still screened.
Note: Related to The Gift: an Alternative to "Psionics" (3.5e Variant Rule)