Contrary to my earlier posts, I would set this scene in a slightly, slightly more representational style. There would still be a few asides, but overall it's funnier when the audience knows something the actors seem to not know. However, the exaggerated facial expressions are a must along with ridiculous gesticulations. I imagine it on stage with a divider and closed door separating the Dromios and Antipholus. The audience would be able to see the people on both sides of the door, and this would increase the comedic aspect. Since the door and wall are there, the two parties would not be able to see each other and would be talking through the door. Then the characters could ham it up as much or as little as they want. Preferably more- they would make it funnier with the facial expressions.

So I guess I see it as simple and pretty much the way it is written. No fancy props, no serious life altering situations, just some fun with a door.