Transcription: Hello, do you in fact need to find out more about the differences between the sexes? Well, you may think it's obvious, but actually it isn't. For example, lots of men think they know when a woman is excited, although the evidence suggests that they don't. And women are frequently surprised when doting partners stray. So, let's find out whether you really know as much as you think you do with 10 simple questions to which you have to answer yes or no. I'll work out your score on a 1 to 10 basis and afterwards I'll tell you what it means in terms of fulfilling your sexual potential.