I recently saw a gif of JOJ… erm, caressing Gina’s face during DJT. (And she looked like she was really into it and I don’t blame her one bit.) Are there any other instances where actors would do something a little different during that song?
To be honest, face caressing is quite common in 'Point of No Return'; I'd almost call it part of the required blocking.
I'm more curious how you saw a gif of John Owen-Jones with Gina Beck in that scene, since the only scenes that exist of them two together are 'Music of the Night' and 'Final Lair'. Perhaps you got Rachel Barrell or Celia Graham (both of whom have full videos of them performing with JOJ) confused with Gina Beck? Or you confused JOJ and David Shannon (who also performed with Gina Beck and has a somewhat similar look to JOJ).
Anyway, unique things that I assume are limited to just what the Phantom does and sticking solely to the original production... well, the most unique will always be Eiji Akutagawa full on stroking his crotch during that scene. Also of note is Franc D'Ambrosio, who does a lot in this scene, but whose most memorable moment is him moaning halfway through it. For reactions, I love both Brad Little and Earl Carpenter for acting so well with a hood on. Then there's Saulo Vasconcelos doing all the face stroking. Speaking of him, he also kneels down during the proposal part of that scene, an uncommon enough move that I gif'd all the actors I could find doing it. If you want to see more face caressing, here's Andrey Shkoldychenko doing it during the proposal part. And if you also want to check out some notable boob grabs, I made some gifs of that, my favorite being Peter Karrie's triple boob swirl.