Quote: "Zoe wrote me a message on her nipple pasties which said, 'Hi Dan'. It was a concise message. I tried to write, 'Hi Zoe' on my bum but I seem to remember trying to do it in a mirror. My handwriting is not great at the best of times but trying to do it backwards on my backside wouldn't have gone well." Daniel Radcliffe reveals his What If co-star Zoe Kazan's secret to easing the tension before filming a love scene for the movie.