Click on “Liquidity” and then on “Add liquidity”. Select the FUSE token by entering the contract address of FUSE (0x5857c96dae9cf8511b08cb07f85753c472d36ea3) and BNB. Enter the amount of FUSE you want to add to the liquidity pool and automatically corresponding amount of BNB will show up.
Click on “Approve FUSE” and approve the transaction on Metamask. Once you approve and the transaction is confirmed on-chain the interface will look as shown below.