I don't really advertise it or go looking to solicit who is and who is not into firearms at my job. It's a major corporation full of soccer-moms and the pretentious types, so I figure finding like minded folks would take a little extra work. But, in the course of casual conversation (ie. someone asks what I did over the weekend), I will mention if I happened to go to a range and that's usually how I find out who my brothers and sisters are.
My cubicle mate next to me isn't so much a gun person but has shot and hunted. She had a CCW in Washington State and is thinking of getting one here in Texas (of course I encouraged her). And we may actually go shooting together because her husband passed last year and she hasn't used many of the guns he owns.
Then a friend of hers that is a few rows over is just a down home country girl. She's not really a shooter either, more of the fishing and camping type. Now she does have her CCW and .357 that she takes out occasionally but is mostly used for home protection.
The boss wants to learn how to shoot, although, I'm not the one to teach him. He's one of those that fall under, "If you can't tie your shoes, you probably shouldn't be using a gun." Nuff said...but he's real interested.
Now, an example of the pretentious type I work with is the snob over the wall from me. Very anti-gun and any time my cubby and I are talking guns, he pokes his head over all suspicious like. I've been tempted to wear only my holster (no weapons at work) just to spark a reaction out of him because I honestly believe he's wound tighter than a Timex.
Now, my old office in New Jersey, surprisingly, had a lot of fellow shooters and was a very open and comfortable atmosphere to talk about guns and hunting and the like. It all depends where you are.