In concertos, I stand up, and I conduct with the bow when I'm not playing. During symphonies, I sit, but sometimes I stop playing to conduct. Being seated in a section allows me to feel more like we're playing chamber music, which is how I like to approach it.
The piano has disappeared from working-class family life, which is a shame. It's associated with the middle classes now. Everyone in my family sang and played piano, but my parents were delighted and amazed when I became the first professional performer in the family - apart from a clog-dancer way back.
I meet people from really grand backgrounds who had horrible parents who took no interest in them, whereas I'm a working-class boy from Deptford who was worshipped by all my rellies. Everybody in my extended family helped to raise me, and I realise now how lucky I was to grow up among kind folk.
I learned to play by ear before I learned music theory. For me, that makes sense. After all, children learn to speak before they read and write. The more you understand of music - how harmony and time signatures work, and what chords and inversions are - the more you'll enjoy it.