Aren't we all subject to evolution?
R&R Circus was a TV registration with lots of camera close-ups and Mick (already in 1964) new very well how to exploit that. Any time he could "talk with his eyes" to the audience via the camera (we, watching it all) he would ignore the journalists. By the time the JJF clip was made and even more so the R&R Circus, he already was an expert and "became a teacher" for the likes of David Bowie, Freddy Mercury an you name them.
Eye contact is the "secret". The above shown clips (great!) show him doing it in all different ways over all this years depending on the situation.
No "change since" but ... evolution
I'm a GHOST living in a ghost town