4. Thinking that tipping is a cute, optional, local custom
No, service wasn’t “included in your bill.”
5. Thinking you can just find a seat at a coffee shop
Is it mid-term period? End-of-semester season? Study time? Half the city is permanently “studying,” while the other half is working from "home" (also known as "coffee shops").
6. Lounging in a park during a nice summer day, thinking you can relax
That’s exactly what the jugglers on unicycles, tight-rope walkers, hula hoopers, awfully loud guitar players, and people who play sports that involve objects that could hit you in the face at any moment will not let you do.