[IMTDb]

I am like your colleagues.

As humans we have been hardwired to recognize biological males from biological females for million of years. So when I speak to someone wether in person or online, I will use the pronouns associated with their biological gender, or masculine if I really don't know. That is the way I have always done so that I can focus as much as possible on what I have to say rather than how I say it. Content > From.

I really do not care about the sexual orientation, food preference or political opinion of the people I interact with in a professional environment, and I don't expect people to really care about mine.

[ceejayoz]

There are quite a few things we're biologically hardwired to do that are not appropriate in the workplace that you presumably manage to rise above.