I'd like it portrayed as simply as having they/them pronouns spoken out in instances where the player's referred to as she/her or he/him. You said so yourself that other characters don't know us, so by default, they should just use what everyone uses for someone they don't know: they/them. People use it all the time without having to put any effort in.
I am sorry, I am very much for tolerance and political correctness, but I travel a lot for work (I spend 150 - 200 days a year in countries all around the world), and nowhere/never has somebody used they/them to address me.
Is this something people in some areas in the USA do?
Because in the places I have been last year (Quebec, Canada; Buenos Aires, Argentinia; Vienna, Austria; Lyon, France; Gislaved, Sweden; Orizaba, Mexico), I didn't meet a person who addressed me with the pornouns they/them or wanted to be addressed this way.
I don't want to mock you or in any way offend you, I am just curious and this is a genuine question.