After House first meets Wilson they get on the elevator on the left, but they go out from the right one when they reach the upper floor.
When Taub is talking to his wife while she is in bed, the first scene has windows with trees (green foliage in the background). When the scene turns to a close up of Taub, the scene out the windows is of a distant lit city-scape at night. However, later on Taub is talking to his wife in their living room, and it is obvious they are in the middle of a range of high rise buildings.
As House and Lucas are talking the pillow beside Lucas on the sofa goes from disheveled to upright and neat to disheveled again.
When House and Lucas are talking, he opens the bottle of liquor. While off-camera, you can hear him unscrew the top. The scene goes back to House with the uncapped bottle then goes back to Lucas. When the scene changes back to House, the bottle is closed with no sounds of recapping the bottle.
When Taub is taking the photo of House with the camera, the lens is shut, instead of open which it would have to be in order to take a picture.