I don't think I pass well (though if you don't look at my face or my walk, you'll be fooled momentarily).
But I plan to live the rest of my life as a woman, so I will use the women's restroom. First time I did it, I was nervous, but no one has given me a hard time. I go in, I sit down, I do what I need to do, I go to the sink and wash up and I'm out. It really is no big deal.
If someone reads me as Trans, well it's about time that people accept that trans people urinate too, and we need a gender appropriate place to do it.