I was just wondering. If I wanted to trade stock options on the floor as a market maker, how would that work in the real world? Is it all done using hand signals? How do you advertise your price levels in a trading pit? Is there a distinction between the price maker and the price taker and if so, what are the implications? Also, how are disputes resolved, like if I say it was a trade, and the other party denies it. From your personal experience, how long does it take to learn and get accustomed to hand signals and stuff?