Actors Daniel Radcliffe (R), Rupert Grint (L), and Emma Watson pose during a photocall
to promote the new film 'Harry Potter and the Order of the Phoenix'
at County Hall in London, June 25, 2007. [Reuters]

When it comes to getting advice on the opposite sex, British actress Emma Watson turns to her Harry Potter co-stars Daniel Radcliffe and Rupert Grint.

The young star, who plays the muggle-born witch Hermione Granger in the hit movie adaptations of JK Rowling's literary series, is a self-confessed 'mad texter'.

Watson admits that when not filming the Potter flicks, she is always sending text messages to Radcliffe and Grint, whose advice comes extremely handy when dealing with boys.

And, she also helps them out when they need to decipher a message sent to them by a girl.

"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," Contactmusic quoted her, as saying.

"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," she adds.

Watson will now be seen on the big screen alongside her two co-stars when the movie adaptation of the fifth book Harry Potter and the Order of the Phoenix hits theatres on July 11.