Two-Faced

Two-Faced (minor) by Stone Gargoyle

The character possesses a secondary face on the opposite side of his/her head. Their head can swivel like that of an owl, allowing them to switch the face they show the world.

Identical in appearance(unless they choose to have plastic surgery on one of the faces), the face might be slightly different than their first face; but, if male, the facial hair might be trimmed up differently, adding +10% to the Disguise skill. This will be blatantly obvious unless hidden somehow, either by wearing a hood or large hat or growing hair out long enough to conceal the second face. If only partially concealed, the character might have the equivalent of 360 degree vision.
This allows them a number of unique abilities. For one, they can chew their food and talk clearly at the same time. If blinded in one set of eyes, they can switch to the second by turning their head around. They can also spy on people while seeming to pay no attention or talk to two people at once. +4 to perception checks.

Other Bonuses:

+2 to initiative and impossible to sneak up on.

Twice as good sense of smell.