system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Credit Cards, how they work, and what is a good college student card?

Im so confused, Everyone tells me i need to build credit but how?
gpt
You just need to apply for a credit card and spend with it, but i can't stress this enough, don't spend more than you make. The last thing you want to do is to get into credit card debt, especially so early in life. And always pay your balance in full.