How as an actress are you meant to inhabit other people if you haven't lived? How are you meant to play someone who gets the bus to work or has a part-time job or whatever if I've never experienced any of it myself or if I haven't been to school? How does that make me someone that people can relate to? I don't think it's possible really.

I have to kind of like switch heads. Sometimes I manage it seamlessly, and other times I feel rather all over the place. I feel a bit schizophrenic, like I have a split personality.

A lot of children of this generation have their entire lives made public before they have a say about what they would want. I think it should always be a choice. I love social media, and I love what it can do and how it brings people together, but used in the wrong way, it's incredibly dangerous.

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.

The story of my life has been of public interest, which is why I've been so passionate about having a private identity. When I step into a character, people have to be able to suspend their disbelief; they have to be able to divorce me from Hermiona. And not having everyone know every single intimate detail of my entire life is part of me trying to protect my ability to do my job well.

When I started dating I had this kind of Romeo and Juliet, fateful, romantic idea about love. It was almost that you were a victim - that there was a lot of pain involved and that was how it should be. Shakespeare said the course of true love never did run smooth and I had a sense it had to be painful. It was such a revelation to realise it shouldn't be that way and you get to choose who you love and who you give your heart to.

I like books that aren't just lovely but that have memories in themselves. Just like playing a song, picking up a book again that has memories can take you back to another place or another time.