Personal opinion: You instill futures knowledge into customers through real trading examples, so that they can understand how futures make money, such as buying more positions and selling more positions. For example, you can buy more places for the store and sell goods to the store. Sell and open positions, buy and close positions, for example, you can borrow goods from other stores to sell and open positions, and then return and buy and close positions after buying; This needs to be different according to customers, and it can't be clearly stated in one sentence (hehe, maybe my level is not enough, I hope everyone can discuss it with each other! )