When Wilson and House are in the park at the beginning of the episode, they point out the man in shorts who is 'trolling'. When the camera cuts from House back to the park, he's gone, but the women he was right behind are still jogging.
Scenes shot outside at the park are full summer - trees are green as is the grass, the lake is unfrozen. However given this is right after a Christmas and Winter episode, and a scene in Wilsons' office with snow outside, this shows lack of continuity.
In the scene in which House talks to Wilson in Wilson's office he keeps touching his forehead with the handle of his cane. However, in the shots taken from behind House with Wilson's desk in view, his forehead touches the backside of the cane's handle. In the far shots from Wilson's desk the cane is suddenly turned around and House's forehead touches the front of the handle.
In the scene where Eve and House are in the park, a brief shot shows the IV line in Eve's hand, which is inserted the wrong way round. It is pointing towards her arm, meaning the needle was inserted towards her fingers, but it should be the reverse.
The Dutch word for grandmother, "oma", is mispronounced (it has a long O, for instance).