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These should be universally applied to all possible encounters regardless of attitude or anatomy

PROCLIVITIES

1. Keeps a bit of dried alzabo brain in their cheek. Voice changes slightly as they talk
2. Chews fragrent bark 
3. Licka the back of their hands while thinking
4. Keeps all their change in their mouth
5. Visits their mother regularly
6. Politically divergent and argumentative
7. Collects religious tracts
8. False beard made of colourful wool
9. Prone to fits of ennui
10. Owl wine connoisseur

AND SO ON

More things should be considered. Anything to break the monotony of people only wanting to get in the way or fulfil their function. Every person has multitudes and we're all very busy. Roll a thing, live the thing through the NPC even if it never gets mentioned. Don't insist on bringing up owl wine just because they like it, just have that in the back of your head; the manticore that liked owl wine, the democratic orc and so on.