Here’s what you do:
Start by finding a scene that you like. A building, an alley, an interesting background of some sort. Make sure there’s a decent amount of foot traffic.
Then previsualize. Where would you like your main subject to walk into the frame? Imagine the precise place you’d like them to be when you take the photo.
Now, plenty of people will walk through your scene who don’t fit with your previsualized photo. Maybe they don’t stand in the perfect place. Maybe they don’t have the silhouette you’re looking for.
And that’s okay. After all, this is an exercise in patience!
However, I recommend you take photos of these people anyway. You might end up with something unexpectedly powerful.
Even if you do get the shot you like, keep standing in place. Stay there until an hour has passed.
Because it’s important you understand, not just the rewards of patience, but how to be patient. So even once you’ve achieved your goal, stand in place, and keep taking photos. See what you can get.