Today you’ll learn one word as a beginner: Gas fee. It’s not the platform charging you random fees; it’s the “fee” you pay to network validators when you perform transactions on-chain. Transfers, swaps, and minting NFTs may all require Gas. The more congested the network is, the more expensive Gas can be. So before making a small transaction, check the fee first—don’t end up with an awkward situation like “transfer 100, but the gas fee costs 50.”