At the beginning of the episode when House is playing his guitar, as he finishes playing it the second time to talk to Cuddy, his hand pulls away from the guitar before the final string is played. See more
Dr. Gregory House
Sometimes I am wrong. I have a gift for observation, for reading people and situations. But sometimes I am wrong. This will be the longest job interview of your life. I will test you in ways that you will often consider unfair, demeaning, and illegal. And you will often be right. Look to your left. Now look to your right. By the end of six weeks, one of you will be gone. As will 28 more of you. Wear a cup.