I’m Gillovny AF but in that moment on the panel it looks like D is motioning to MP and asking G « Does that bother you? » or « That bother you? » because there was a question about them directing and then MP’s response was about how directors ignore the actors. It was a bit of an insult to directors. G didn’t understand so D added a couple of more words with a hand motion, basically like « What he’s saying » or « He’s talking about us ». She shrugged it off. Just my take on it.

My issue with lips reading is that every time someone comes up with a suggestion, I agree with them because I watch the video (or the gifs) with this new suggestion in mind and it fits all the time! So yeah, you could be right, it does fit and it does make sense too! 

I was under the impression that David was pointing to something behind Mitch and not straight into his direction, but it’s hard to say, so I could be wrong…