People love and romanticize the idea of living like a local when traveling, so here's a big tip on how to do that:
Do really ordinary boring stuff.
Errands.
Except when you're in a different setting, a lot of times it won't be boring at all. Some unfamiliar places.
In Guatemala, ordinary errands for us looked like grocery shopping and tracking down insulin.
But it's when you do these things that you realize the subtle (or occasionally unsubtle) ways these things differ from place to place and how that reflects deeper, underlying differences that make each place unique.