I literally can't talk without moving hands.

I literally can't get anywhere now without the map on my phone. I used to use an A-Z when I first came to London, and now I really struggle because there's no dot to show where I am. And I think that part of my brain doesn't work any more.

Little girls as children, I think, are expected to behave better. If a boy's naughty at school, he's a little bit cheeky and mischievous. If a girl's naughty, she's trouble.

I've never loved a character as much as I do Niska. The way she's been written is so complex, with huge amounts of light and dark. It's a really satisfying challenge to play someone who is superhuman in their intelligence and physical ability but completely naive when it comes to certain aspects of life.

If there is an option to use a real human being and to have a chat with somebody and do your shopping that way, I do try and do that.

I always thought that at the very time of your life when you want to be cool and sexy and fascinating, you are none of those things. You are a hormonal muddle in your school uniform sitting in double science looking at a boy who you know will never notice you. That was definitely me; I was so shy at school.