Human: Can you explain how a credit card works? Assistant: 
A credit card is essentially a loan that allows you to borrow money from the lender, usually at an interest rate. The lender then pays you back over time in installments. You must make regular payments on your credit card each month, and the amount of those payments will depend on the terms set by your lender. If you don't pay off the balance in full each month, then you will incur additional charges or higher interest rates. In order to keep your credit score high, it's important to make timely payments and not carry a balance for too long.