Innistrad’s population is mostly human, and player characters in an Innistrad campaign should be human in most circumstances. However, the humans of Kessig are different in many respects from those of Gavony, and Nephalia’s urban culture is very distinct from the shadow-draped land of Stensia. Diversity among player characters comes not from race, but from each character’s home province.
Human characters on Innistrad have the following traits. If you use these human traits, do not use the variant human traits presented in the Player’s Handbook. As well, in campaigns that use feats, characters should not be allowed to choose feats that duplicate any provincial traits.  

Stensia

  Countless generations of hardship and proximity to the vampire strongholds—leading to lost children and neighbors—have taught Stensians to guard their hearts. They are proud and fervent in their beliefs but seem brusque or even cold to the people of other provinces.