I’m an English (and French) as a second language teacher. I share stories from my lessons with people when these would be relevant to the conversation at hand. There’s not much (if anything) by way of confidentiality about which I have to worry.
That said, I don’t like to talk at length about my classes. From time to time, I will talk shop with other teachers. Otherwise, me and my friends usually discuss other topics of interest to us.
Most of my friends are teachers as well, so shop-talk dominates any gathering if we aren’t careful.
Sometimes my work ends up a breaking news story.
I cannot discuss as i am bound by confidentiality laws.
I’ve talked with you about your work~it wasn’t the least bit boring. You are clearly passionate about keeping people safe and secure.
My wife works in an elementary school. Every day when she comes home, he tells me about the hilarious and/or maddening things the kids did that day.
My husband and I were both engineers (since retired) and generally when we talked about work, it concerned projects we were on and problems we were having. We were each other’s sounding board. And when we worked at the same company, tho in different departments, we’d bitch about certain people because we could.
With other people, tho, I didn’t much talk about work because in general, non-engineers have no idea what engineers do and they really don’t care. So when asked, I’d give a rather vanilla answer and the conversation flowed elsewhere. The best, tho, was when I had a government job that I really could not talk about. I know people wanted to ask more, but even if I’d been free to discuss, they’d have been bored in short order.
Retired now, but most of my career was in classified areas. I usually wasn’t allowed a cell phone, and sometimes couldn’t even tell my wife where I traveled. Despite being provided with cover stories, I chose the easier route of not talking much. If I talked about work, it was complaints over upper management decisions.
So it was completely one-sided at home. I’d sit quietly while my wife ranted about annoying co-workers. I learned all their names, histories, habits, etc. I doubt she could name 3 people I’ve worked with in the last 25 years.
I used to say: “I could tell you, but then I’d have to bore you to death.”
Same with me, just a little more ‘red’ in my level of information and lots of caveats. I’ve leaned into not talking about current work here on the SDMB too, but the past life (see my avatar) is fair game and useful for comic relief.
I don’t bring work talk home either. Even though I live and work in a ‘company town’, we all know to keep our yams shut.
Tripler
“A little drinking village with a science problem.”
This is generally my husband and me. Sometimes we might use each other as a sounding board for a specific project, but we tend to leave work at work. When we did home office during COVID we really had to work on keeping work separate from home life.
I rarely talk about my work with other people. First I have to explain what I do, and then a lot of other information, so that’s already getting boring. I’d rather find other topics to discuss.
I talk a lot about work with my husband, I love my job and get super nerdy about it. I work from home and my coworkers aren’t very social online so I need that outlet. Going to the office isn’t an option, I’m not in the same province as my employer. My husband is a very patient man.
With other people - well, most don’t remember what I do, don’t understand it or why I love it, and their eyes kind of glaze over.
This week is school vacation week, so high school kid has been home while I have been working mostly from home (liberal remote work rules this week). She has been listening in on my work meetings and severely critical of how I run meetings.
She’d taken classes in running meetings both at school and at work, and apparently I suck at both planning and execution.
Useful feedback, even if her delivery style needs work 
Before you are inducted into a leadership position in a school organization (e.g. President of Math Honor Society) you have to take a four hour (four one hour segments) class in planning and leading a meeting. Complete with pre-work, homework, role playing and peer critique.
And people complain that schools don’t prepare you for the work world. But then the people complaining often went to school in the 1960s and 1970s.
When people ask what I do, I usually say, “I teach at [my university].” Then they ask what I teach, and when I say math, that usually stops the conversation, though they often get in, “oh, I was never good at math” first. We go on to other topics. Pretty much the only conversations I have about my work are with friends at work or with other mathematicians.
I work in a hardware store so most people are familiar with my job and there’s not much to talk about with Wife or friends. Occasionally I’ll have a crabby customer that I can complain about later.
On Mondays I’ll repeat to Wife what the women at work said about Propane Guy. He delivers propane to the store every Monday, and is very attractive. We wear radios that allow conversation that only employees can hear. His arrival is discreetly announced by the cashier like so: “Hey, Propane Guy is here. Mmmmmm.” This is followed by all available female employees racing to unlock the propane cabinets for Propane Guy, and their witty and raunchy radio chatter.
You drive a train, right? 
Yeah, I get the same with GIS. So I just usually say “I make maps with a computer” It’s much, much more complicated than that. Hell, I haven’t made a custom map in years. I mostly do the tabular data/automation for it now. I leave the cartography for the newbies.
Most of the time when I talked about my work it was complaining about how I was constantly having to redo work that other people hadn’t done right, or coming back from vacation to find that none of my work had been done while I was gone (and then when I got caught up I was asked to help out someone who hadn’t been off work). My running joke was that I had to do the work of three people - Moe, Larry, and Curly.
Occasionally when I would let it slip that I worked for the Social Security Administration I would get someone asking about a problem they or a relative was having with their benefits. Or asking generic questions about how the system worked. I was generally okay with this, as long as I made it clear that I couldn’t look up someone’s records, or check on the status of a claim, or (and I did get this at least once) take care of a problem they were having myself.