Once you have deposited your funds in JOYSO smart contract, there should be ETH, JOY and other ERC20 tokens available in JOYSO for you to trade
As below, you can see the section marked as “SELL” and “BUY” respectively at the exchange website. Insert the amount and price you want to buy or sell
Sign the transaction with Trezor
If "Successful to send transaction" appears, meaning the order has completed
Once you sign and submit the transaction message, you permit JOYSO to match orders for you.
Note that if the total amount of your order exceeds your available asset, there will be a pop up message in red. There will also be a reminder if the price you insert are too off from the market price.