Your head is particularly wide and large, even for a goblin.
Benefit: You gain a +1 trait bonus on Perception checks, and Perception is always a class skill for you. Any Escape Artist checks that requires you to squeeze your head through a tight space take a –8 penalty.
Pathfinder Player Companion: Goblins of Golarion. © 2011, Paizo Publishing, LLC; Author: James Jacobs, Hal Maclean, and Richard Pett.