In the world of finance, there exists a method called "public auction" where verbal bids and offers are made in the trading pits or rings of futures exchanges. This process involves the exchange of goods or financial instruments through the use of competitive bidding. It is a highly dynamic and fast-paced environment, where traders communicate their bids and offers through a series of hand signals and verbal cues. This method allows for efficient price discovery and facilitates the buying and selling of futures contracts. It is an essential component of the futures market and requires quick thinking, sharp communication skills, and a deep understanding of market dynamics.