Concentrate on comfort - even if that means wearing the same thing over and over, because when I feel comfortable, I feel so much more relaxed and have a much better time.

I threw my 20th birthday party at Brown, and I didn't even have to say to anyone not to put pictures on Facebook. Not a single picture went up. That was when I knew I'd found a solid group of friends, and I felt like I belonged.

We want to end gender inequality, and to do this, we need everyone involved...We want to try to galvanize as many men and boys as possible to be advocates for change and we don't just want to talk about it. We want to try and make sure that it's tangible.

I didnt know there were so many ways you could walk down stairs until the day we filmed Hermiones entrance into the Yule Ball Hall.

If I hadn't done 'Harry Potter,' I would have gone and done years of art. I really do love it, and I'd love to write.

For the record, feminism by definition is: 'The belief that men and women should have equal rights and opportunities. It is the theory of the political, economic and social equality of the sexes.'

I love Karl Lagerfeld. I worship him. I was brought up in Paris, and my mum used to wear a lot of Chanel. I love the brand.