The One Where Ross Hugs Rachel - S6-E2
Question: Right after the lawyer says to Ross, "of course you did," the camera cuts to Ross. If you look closely, you can see something waving in front of the lawyer's mouth. It is either his tongue or finger. It looks funny, like the actor did it on purpose. Also, the hair looks different, like a chunk has been cut out. It is most likely a different actor for that section of the scene. Why was something waiving in front of his mouth?
Answer: While it does look funny, there's no chunk missing, it's just the way his forehead curves and his hair sticks out on top. It's just more noticeable at that one angle. And, it's the same actor. The thing waving is his finger that he's wagging, and it does seem to be because of a continuity error. Shortly after, when Ross says he'll look into the therapy, the lawyer then points his finger and shakes it (as if to non-verbally say "yes, do that"). It is this action that we see the lawyer doing, from behind, even though he doesn't wag his finger until later.
Bishop73