What traits from your non-core trifix types have you noticed in yourself?
My 6-core (along with so/sx), makes me seek a sense of belonging, but my 3w4 fix also adds a desire to be seen as distinguishedbo to the people in those groups. I want to be seen as the guy with the best sense of style, consistent looks/grooming, the best taste, etc. and I sort of enjoy showing off or simply knowing when I'm doing something important that everyone else isn't. I think about surface level self-improvement for it's own sake all the time too. My demeanor is also pretty aloof and Ken Doll-ish according to other people until I open my mouth, in which case it becomes clear that I'm a phobic 6w7 I'm basically a smooth neurotic. I also tend to walk with my head up high looking straight ahead "disregarding" others like I'm on some sort of mission when I'm really going grocery shopping.
As for 1w9, my body language is sort of "clenched". I sit on the train like an old anal-retentive INTJ reading a newspaper while drinking a starbucks.