1. Open the transaction page and find the coin pair you want to trade. Take OKT / CHE as an example
2. Enter the amount for transaction and click 【Swap】 to exchange.
3. Confirm the information is correct, and click【Confirm Swap】.
4. The window of MetaMask will pop up here to confirm the GAS fee for transaction, and click 【Confirm】 to pay GAS to complete the transaction.