People buy, sell, trade, create, and store NFTs on NFT platforms. Many platforms provide new users with step-by-step instructions on connecting crypto wallets for purchasing NFTs. It's important to understand associated gas fees, type of currency used to make purchases, and other rules about creating, buying, and selling NFTs on that particular marketplace. Look for other features such as ease of use, security, and wallet compatibility. Three common NFT platforms include: OpenSea, Nifty Gateway, and Binance.