The Trading Session's Hall was the heart of the Coffee Exchange. In that spot, its main reason of being, coffee negotiations mediated by brokers, took place everyday. At the peak of its operation, the Trading Sessions dictated the rhythm of the Santos' Square with trains from São Paulo arriving from time to time bringing many coffee traders for the beginning of the sessions.

Not only those directly involved in trading went to the Coffee Exchange, but also those who wanted to keep up to date with the new financial tendencies of this market.

It's funny, everyone hears about the Exchange and such, but don’t know exactly how it works. The broker sat on those stools on the floor in there, right? Inside. And outside, were the frogs, right? They were watching, just to see how it was. The sellers and speculators. The large speculators, who were there - how were they called? Siciliano? Conde Siciliano, Almeida Prado, these people would often change their broker, so no one would know who their broker was. They were large speculators, so if everyone knew that it was their broker and he was buying. "The Sicilians are buying" and everyone would buy. He’s selling - everybody would sell. Nobody knew who their broker was. So he would be on one side and the broker could be on the other side, on a stool. He had signals with the broker, to buy or sell - or do nothing. He would pull on his ear as a signal to buy. Touch his nose to sell, understand? Play with his beard to do nothing. So that was it - you do nothing, the client did not give the order out loud to the broker to "buy" or "sell" or what ever because it would influence the market. So he had these signals with your broker. (Alvaro Vieira da Cunha, A., 2011, p.4-5)

You went to the Exchange, the Exchange had two sessions. One at 10:30 in the morning and another at 4:00 or 4:30. I’m not sure. So when you went there, the bell rang and it was time, then came a coffee person, who was chosen to be the president of the Stock Exchange during a grand occasion - I've had presidents who were at the Exchange for ten years, and two secretaries. They were at the table up front - you can go to the Exchange and see. They sat there and began by saying: "The trading will begin for a certain date." It was all done just right. Then he said: “First month, let's say, at the time: in October!" and then the people would say: "Buy, sell, buy, sell." When there was no response: "There was no interest, we would move on to the next month. "In that way, they would continue until they finished the deals for the whole year, understand? Sometimes business went well, and sometimes there was not much interest there, see? Business at the Exchange depended on the conditions of the market, you know? There were times when there was a lot of business in the Exchange and other times when there was not. (Eduardo Hayden Carvalhaes, 2011, p.7)