Monstrous Peacemaker Feat 1
Source Pathfinder Core Rulebook
Your dual human and orc nature has given you a unique perspective, allowing you to bridge the gap between humans and the many intelligent creatures in the world that humans consider monsters. You gain a +1 circumstance bonus to Diplomacy checks against non-humanoid intelligent creatures and against humanoids that are marginalized in human society (at the GM's discretion, but typically at least including giants, goblins, kobolds, and orcs). You also gain this bonus on Perception checks to Sense the Motives of such creatures.
Traits
Anything that doesn't list another rarity trait (uncommon, rare, or unique) automatically has the common trait. This rarity indicates that an ability, item, or spell is available to all players who meet the prerequisites for it. A creature of this rarity is generally known and can be summoned with the appropriate summon spell.
HalfOrcA creature with this trait is part human and part orc. An ability with this trait can be used or selected only by half-orcs.