But other guys just set up shop somewhere and wait for customers.
You may have seen them "camping out" on or near busy bridges.
This guy and his buddy staked a claim along the fondamenta near the Pescheria in San Polo. They grabbed two careghini from a gondola, strapped a big yellow unbrella to one of those little chairs, and they were ready for customers.
Opinion: nice work if you can get it!