if villain is a tag he has set or nfd a lot here
if he's a good tag he sometimes has some random crap here sometimes as well

but calling is not standard, only do it if someone's getting out of hand
AJ is a closer decision since NFD has less equity vs. AJ and some people c/r AJ for value if they expect you to call a c/r with top pair (which is another reason calling with KJ is not great)

pre usually you should open KQo but not KJo