Neil Patrick Harris Talks Hiding His 'Wang' in 'Gone Girl' Sex Scenes on 'Conan' - Watch Now!

Neil Patrick Harris holds up his “Choose Your Own Autobiography” book while attending a signing at Barnes & Noble bookstore at The Grove on Friday (October 24) in Los Angeles. Later in the day, the 41-year-old actor made an appearance on Conan to promote the book and chat about his sex scene with co-star Rosamund