I'm starting to get "male fails" quite frequently now, I typically don't wear any makeup to work but my hair is below ear level, I wear sporty female clothing since I always cycle to work, I'd say 30/70 these days.
I've only been on Cypro for 2 weeks so probably it's mostly behavioural as some girls have mentioned, one case that sticks out was a woman working the register at a grocery store, she greeted me using female pronouns but then said "Have a great day Sir".
Sometimes I wonder if it's due to trans awareness or if they are correctly gendering me, in any case it never fails to put a smile on my face.