How about:
Empty headed: Half orcs have a +2 bonus against mind affecting spells and effects.
Abused: Can Take Die Hard feat without meeting prerequisite.
Kinslayer: +1 to hit orcs in melee
-These are human raised traits-
Labourer +50% carring capacity
Thrown down the well and came right back: +2 to swim and climb checks.
-These are orc raised traits-
Orcish leader: +2 to Leadership score if cohort and at least 50% of followers have orc blood.
Beast rider +2 to ride checks and handle animal on dire wolves [or other campaign specific orcish mount].
Nobody's bitch: +4 to on checks to escape grapple and break pins.
The pretty face: +3 on diplomacy checks with orcs, gnolls, gobliniods, minotaurs and non-good giants.