Sony A7RV - Automatic Video Eye Focusing/Tracking w/o touchi

[rda]

Still trying to figure out this camera, but when shooting video, I assumed/hoped that the camera would automatically focus and/or track people's eyes; but I find I have to touch the person on the LCD first and then it works brilliantly—and I see the square over the eye until I hit the center button. Otherwise, I don't see the square over the eye, so not sure what it's focusing on. Is it focusing but not showing the square or do I have some setting wrong?