A question for all my
#trans and
#NonBinary friends out there...
If I were to refer colloquially to someone who does or is something, and whom I know is male, I would probably refer to them as, "the *guy* who does this". I may also use "chap", "fellow", or "fella". I've even been known to use "bloke", "cat", "dude", "yob", whatever, depending on how obtuse I'm feeling at the time. "Man" of course is acceptable but I wouldn't consider it colloquial.
In the similar situation but instead knowing the person is female, I'd say "the *woman* who does this" - or, often, "gal" or "lady". I use "girl" very, very seldom because of the connotations, and in the same circumstance where I would use "boy" for a male. I've also heard "guy" used interchangeably, and may have done so once or twice, but I don't really consider it a solution.
It's a bit more stilted with women overall, but that's a level of etiquette that is absolutely impossible for me to decouple from my being. Gentility 101.
If I were to refer to a non-binary person, what word should I use? Of course, the polite thing would be to ask first, and I would certainly do so if I had the opportunity, but the idea of etiquette has traditionally been that there's a proscribed way to do things so you don't have to ask. "Person" seems too clinical, and I'm not aware of any widely-accepted neologisms - though I wouldn't be.
To consider the source, here: I'm an older
#NorthAmerican cis-gendered
#GeneticLotteryWinner - and I'm sometimes cited as being "old-fashioned" in my manners and outlook, even by those in my age cohort.