No idea! I thought they all had caddies. They should have.
He worked it both left and right depending on the situation. What impressed me most was how he would draw or fade iron shots into greens.. and spin them towards the hole. It wasn't a ton of movement, but it was noticeable.
He is a very good putter. He is incredible from 6 feet and in. I think he might have missed one all week. He made a few 20+ footers as well. Made it look easy!
That must inspire you to work harder on your game, eh? I find playing with better players makes me focus more.