Transfer the bitcoin from your wallet to any other non Gemini/Coinbase wallet. Most crypto people have private wallets. You can also use something like localbit

Transfer the bitcoin from your wallet to any other non Gemini/Coinbase wallet. Most crypto people have private wallets. You can also use something like localbitcoins or Bitcoin ATM. Or you can literally meet with a person selling something for a coffee, transfer BTC to their wallet, they wait few minutes for on chain confirmation, give you stuff you bought, done.