Macbeth: If I Was the Director

If I was the director of the Macbeth play I would stage the dagger scene to show Macbeth as the only one seeing the dagger. I would make it so only he sees the dagger to make it more believable that Macbeth is going insane. Because when you grab at the air and nothing's there it makes you look insane. Also in the Patrick Stewart version of Macbeth when he says "Is this a dagger which I see before me, the handle toward my hand? Come, let me clutch thee"  it personally caught me off guard when Macbeth grabbed at the dagger. I would also make the actor that is playing the part of Macbeth to grab at the dagger like there was an actual dagger there. Another thing I would do if I was the director is that I would make the stage dark and have a spotlight shining on only Macbeth to make the scene seem more sinister and suspenseful.