Cryptocurrency can be used to buy and sell goods and services in much the same way as traditional legal tender. You can use cryptocurrency for online payments, ecommerce purchases, and peer-to-peer transactions. When making a purchase or payment, simply provide the merchant with your public wallet address. The merchant then processes the payment using the corresponding amount of cryptocurrency from their own wallet. For goods and services that are not sold online, you can find an exchange to convert your cryptocurrency into local currency. You can then pay the merchant in cash or with a credit/debit card.