I went to the beauty school for a haircut. My real hair was long enough that stuffing it under a wig was getting to be a chore. The beauty school is cheap, and the students work under fairly close supervision, so they do a good job.
Since a haircut involves taking my wig off in public (*eek*! *shudder*!), I put on makeup and dressed nicely to minimize the chance of misgendering and to (mostly) control my own dysphoria. I thought I actually looked pretty good in the mirror, even without my wig.
I had no reason to suspect that anyone there misgendered me. At least, if they thought it, they kept it to themselves. After I gave them a "teaching moment" last year, they might even have included some trans awareness in their curriculum.