When Andy, Bailey and Herb are in the Bullpen waiting for Les to finish his newscast, pay attention to the speaker on the wall. When Andy turns the speaker off it is hanging straight, then when the camera shows Andy again the speaker is crooked and back to straight a few seconds later - Schlepperman.
When Mrs. Hutchinson said, "Of all the gin joints in all the world, you had to walk into mine", her hands are crossed on top of the counter. When the camera angle changes, her right hand is on her hip.