Near my home is an outdoor plaza/sports park that is kept tidy by a few cleaners rolling their carts up and down the area. I saw this man round the corner and I knew he would be moving up the sidewalk. I ran ahead, adjusted my settings, and waited until he walked into frame.
This sounds strange, but I wasn't aware of what he was doing when I opened the shutter. I had only been taking pictures a couple of weeks, so I was just excited my plan worked and I was able to get the shot I wanted. It wasn't until I reviewed the shot that I realized he was checking for change - something he does many times a day, I'm sure.