How do I get a job at a cafe?

I just wanted to get a job at a local cafe and I’m not sure about how I can go about doing that. I want to be guaranteed the job not have them just give me an application and never call me back.
Should I make a habit of visiting that cafe frequently? Talk to the baristas maybe? What are things I can do to increase my chances? I’m a minor and legally able to work, but I know a lot of places like starbucks say they hire 16 and up who end up hiring mostly 18 and older.
I dont mind working at a franchise like Peets or Starbucks, but I think I’d rather work at a local.