I'm an attorney and I don't dare talk politics around my colleagues. I don't want to deal with being called an idiot or a bigot and having to spend an hour educating willfully ignorant people.
I was getting an ultrasound procedure the other day and the technician, who was a young Mexican American, happened to ask me who I was going to vote for. I told him Trump and he smiled and agreed. Then we had a pleasant conversation about guns. He was a second amendment guy.
For future reference, my caveat also applies to exit polling. If I get exit polled, my policy is to say nothing. But I don’t look like a Hillary voter, so they probably won’t ask me.