Shakespeare's the Death of Caesar

It's quite a difference from the speech that brutus gave a few days earlier after the act. And it isn't just the speech that mark antony gives. What else involved in this? It all becomes a bit ritualistic, doesn't it? Yes, whill he's using props. Plutarch tells us in brutus, chapter 19, that he takes the robe of caesar, all bloody as it was so what he was wearing when he was assassinated and unfolds it to view. That's literally on stage. But it seems as though mark Antony played it as though he were on stage at the time. Let's see what horrible damage you did to him