PFSRD:Pass For Human
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Pass For Human
You're easily mistaken for a human rather than a member of your own race.
Prerequisite: Half-elf, half-orc, or halfling (see Special).
Benefit: You receive a +10 bonus on Disguise checks to disguise yourself as a human, and do not receive the penalty for disguising yourself as a member of another race when you do so. In areas largely populated or settled by humans, you can take 10 on your Disguise check, meaning most people tend to assume you are human unless given a reason to think otherwise.
Special: A halfling may take this feat, but must have the Childlike feat as a prerequisite. The benefits of the two feats stack.