<prompt> Human: So like the title says, Im 22 yo, and just checked on credit karma and I have no credit. I feel like I need to start building it now for my future and would like some tips on how to. I do have a good decent job, and will be able to pay a credit card off. But Im worried about what kind to get. Any advice? Thank you guys!  <response>: Discover has a reputation for being a good first card, easy to get, good service, and good rewards. 