Even before HRT and whilst looking quite male (still do ;( I sometimes get a glimpse of her in the mirror, I think it centres around the eyes, its just fleeting and once i see her and look she is gone, although as my hair grows and eyebrows become more shaped she hangs around for a bit longer now. Interestingly though its quite often when i have just put shaving foam on so I don't know if its obscuring the shape of my lower face that does it.
Anyway enough rambling, but keep you mind open when your in front of the mirror and you may just glance a look at her when your least expecting it and not even trying, and when you do its a wonderful feeling.