In the past I’ve been asked to play these characters who, you know, jump around a bit, they’re frenetic and they physicalize. [Smiley] doesn’t slouch. There’s a line in the book by Ann, the wife, and she describes – I’ll have to go back to it, dig one out to find the quote exactly – but she describes him as a swift. Like a creature that can regulate his body temperature to the room. He then sort of disappears, and you forget he’s there. The trick is, you’ve got to play a very smart man, but socially a little awkward, a little dull, he doesn’t dress very well. You’ve got to make, as far as that’s concerned, an uninteresting character interesting. You have to give a very plain man enough charisma.