+2 Strength, -2 Intelligence, -2 Charisma.
A half-orc's starting Intelligence score is always at least 3. If this adjustment would lower the character's score to 1 or 2, his score is nevertheless 3.
Medium: As Medium creatures, half-orcs have no special bonuses or penalties due to their size.
Half-orc base land speed is 30 feet.
Darkvision: Half-orcs (and orcs) can see in the dark up to 60 feet. Darkvision is black and white only, but it is otherwise like normal sight, and half-orcs can function just fine with no light at all.
Favored Class: Barbarian. A multiclass half-orc's barbarian class does not count when determining whether he takes an experience point penalty.