Horatio pretty much always says and does what is expected of him. He is sort of the oil in the machine, keeping it running. He says yes when he’s supposed to. He nods at the right time. He wants to know what Hamlet wants to tell him and he never makes waves. He doesn’t say, “Nah, I don’t care what you wrote there.” Of course he wants to know. Of course, we, the audience, want to know too.