No, you're wrong. I saw pelousi stand up and turn her back on Netanyahu. I guess she was making all sorts of hand and facial gestures during his speech, also, which I did not see. I guess it was who was handling the camera and how they got the shots in the room. The angles were different on the different TV stations.
I DID see once, a large applause that the camera shot a group of sitters (obviously democraps, but the angle didn't identify) that nervously began to applaud when they realized they might be the only ones not responding