Witnesses said that a group of settlers tried to perform a silent ritual, and were then seen doing the aforementioned "Talmudic gestures" while listening to the tour guide describe "the myth of the alleged temple that was in place of the holy mosque."
So the Jews "tried to perform a silent ritual." And if that wasn't horrible enough, they made "Talmudic gestures."
Talmudic gestures?
I figured I'd find a video somewhere on the Internet showing Talmudic gestures, and sure enough, I did: