The word "passing". It makes me think of pet training, "Heeere, ->-bleeped-<-, go on, pass, pass! Aaawww, you passed, who's a good ->-bleeped-<-?". A better word would be "percieved as...", since that is essentially what happens (you are percieved, by people, as male, female, a goth, a shoplifter, a tea drinker, etc). Being percieved as something cements the fact that it is purely in the eye of the beholder, and it removes the pet training vibes of passing.