My first day of work as Sarah was GREAT!!!! All my worries about this town seem so silly now.
For the most part people didn't really say anything one way or another. There was one guy who walked in & said "That's the weirdest thing I've seen today". He seems to have some weird idea that this is just a prank or costume or something. He'll learn soon enough. I still got 2 or 3 sirs, but those were regular people who have said that to me forever, so it's still reflex for them at this point. Plus I'm still convincing myself they're saying 'Sarah' too quickly.
On the bright side, I had many compliments. One woman said I looked fabulous and was very happy for me. I wanted to hug her. After she left I had to step aside and hold back some tears. Best of all, our courier guy that I see every day (who, by the way, is SUPER cute!) said I looked very pretty.

I may or may not have been flirting with him for the last couple months.

Clumsily, I'm sure - I've never flirted before!

EDIT: Oh yeah!! Plus another woman said 'I know the man that's normally at that desk, but I don't think I've seen you before.'. Nope, you've not seen me before.

Yet another woman asked a coworker if I was <deadname>'s sister.
Bring on day two!