LOL, yeah, here I've been trying to put weight ON! I was pretty skinny last year. I'm a bit flabby again now - and I'd care not to mention the rubbish (and amounts thereof) I sometimes eat to get there. But... barely an ounce has gone near my face or neck. It's gone back on my lower belly and boobs mostly. So gauntness just refers to my face. I think gaunt face and moderately zaftig body is an unflattering combo I'm currently stuck with.
Obviously I know one problem, being the small lump on my neck, which is a read sometimes in social situations. But not always. I had a period where I was heavier and it did not show at all. It's very small. That was, I think not-so-coincidentally, probably my 'peak' passing period, lasting five years or so. I wasn't really happy being that weight, though. I felt comfortable with my weight last year, but unfortunately it worsened aging effects of sunken cheeks & sagging, which now mostly remain even though a bit heavier again.
You know, and this is a sensitive thing to mention - the trans awareness and media stuff, IMO, has made it MUCH harder to pass too. I get these two funny incidents recently, but by coincidence there happens to be this trans person on a show over here in the UK at the same time (Celebrity Big Brother; and quite a POOR representation of us, at that)... this might not be coincidental... it puts it into people's minds, IMO.
Mostly friends have said they didn't think it. You never know, but friend who recently said it, I completely believe him. Because I was assuming he DID know - several in our circle do, and you assume gossip/word spreads - but it became obvious, as I bemoaned appearance issues, that he was oblivious. He rightly deduced age was a factor but obviously wasn't thinking about anything else. So I decided to disclose as I trust & like him. I think if you don't, it feels like a barrier between you and others anyway. People I've never disclosed to, there's always a bit of hedging and caution in the relationships, for me.
Answering postman/woman looking a complete mess first-thing, was my idea of Ultimate Pass, yeah! And that's always been so, as far as I'm aware. I sometimes think I'm more passable when I'm disheveled and making no effort at all...
The idea of suddenly dressing with various things in mind is weird to me. But one thing really in my mind is trying to wear lighter/medium coloured bottoms so my butt is apparent. I hated the idea of compensatory clothing forever. But this is the Bad News: passability might worsen with age for those who transitioned under, say, 35yo.