Emma Watson relies on her Harry Potter co-stars Daniel Radcliffe and Rupert Grint for advice on boys. The young actress is a self-proclaimed 'mad texter' on her mobile phone in order to keep up with friends while she is away shooting the epic wizard movies. She says, "I am always texting Dan and Rupert when we are not working. And we are always swapping girl and boy advice when we're together. It's quite funny - I am like, 'Oh, I have got this text from a boy, what on earth do I say? What does this translate to in boy language? I don't understand,' and they will be like, 'Well, this means this.' "I have got my own personal on-set boy text translators."