Heck you could tell by looking at her.
You know, most of the time that's probably true. There's something about the way they look (and act), isn't there?
My BIL's wife is a Jewish woman from NY. You couldn't be around her 5 minutes and think she was anything but a lib. Without talking politics. Of course on top of that she's a retired public school teacher. All the lib boxes checked off there.