Men are more obvious to me in their gendering, they'll call me "mate", "pal", "lad", "man" etc whereas women tend to say "hun", "sweet" or "dear" if they say anything like that, and it would be reasonable for them to say it to a boy of my apparent age, especially older people who seem to think everyone's younger than they actually are anyway. And I know I look that young because I'm still being sold under 15's tickets for the train without asking for one (not that I'm complaining).
I think men are more inclined to take a "meh, whatever" approach to misgendering someone, but women would be horrified at the thought of being misgendered themselves, so make a big fuss out of it if they do it to you, thinking that they'll make you feel better.