We went out for a hack as it was a beautiful day. After a period of walk and foxtrot, we went back to walk and came to the base of a hill. I asked him to foxtrot, which he did, but then offered a very sedate canter, so I went with it. It was great fun for both of us. He did it a few more times later in the ride when I asked for it too. He stays in foxtrot unless asked to canter. Great fun.