2. Miming An Entire Conversation Through The Window
Series 4's opening story, Partners in Crime, has a truly wonderful sequence. In fact, the scene is so popular with fans, it's a regular fixture in Tenth Doctor clips videos. Both the Doctor and Donna are independently investigating Adipose Industries and their sleuthing brings them to the same building. While the Doctor eavesdrops from an electric window cradle outside the tower block, Donna peeks through the circular window in the door of Miss Foster's office. After a few seconds, the Doctor and Donna notice each other, and Donna begins an elaborate mime of the unlikely chain of events that has led to her bumping into the Time Lord again. Tennant's reactions to her joyous routine are a delight to behold, as is Miss Foster's incredulous comment of, "We interrupting you?". Because every fan will want to see it again, here's a video showing the whole loud-out-loud scene.