First go to the websit to mint your NFTs
https://briq.construction/builder
My mint:
Go to “Manage Set” on the Upper Left Corner, you will see the set you minted.
Connect your Argent Starknet wallet, you will see your minted nft
Click that nft, and click “list for sell”
Set the listing price, I entered 2 (as the selling price), then sign the message in your wallet. After listing is successful, you will see it being listed.
After I have listed my two nfts for selling, maybe my price is too cheap (1 and 2 test tokens), my nfts were quickly sold. Click your wallet address on the top right corner, and select activity, you will see the selling history.
Buying nft on the market
2.Offer the price
Choose the nft that has not been listed, click buy, make an offer, and click sign the message in your wallet. Wait the seller to accept the offer.