I'm out in the vast majority of my life but aside from a few people I feel comfortable with, I feel like it's for the best that I don't really be too open about my CDing at work. I work in a home improvement warehouse store and while many of the employees are cool and laid back, some are the super judgmental conservative types who call themselves christians but don't really get the message.
Anyway today two women came into the store, and when they'd walked away, two of my coworkers were discussing the possibility that one of them was trans. I think she was a sister, but wasn't entirely sure. In general the conversation was pleasant, they weren't really being judgmental, just saying how they weren't always sure how to act or how to refer to someone.
At one point though, one of my coworkers was talking about pronouns, and he said "So anyway I look at it.." and I stopped him and just said 'Pardon me, but did you really just refer to another human being as "it"?' and he looked at me, and to his credit, realized the weight of what I said and seemed to feel bad about it. I then told him that for future reference, transgendered people usually prefer to be referred to by the pronouns for the gender they are presenting as. There wasn't any hostility in the conversation and things weren't uncomfortable at all afterwards, but there was a time in my life where I would have said nothing in the situation and let them just keep talking about it. I'm glad now that even though I'm not an activist, I can at least be confident in helping to educate people.