It's an old game so might need some fresh blood. You could do some flyers, there are some on the forum to download and print :-)
I usually stop and talk to people when they look at me funnily. You do look funny when you come on the bicycle - stopping in the middle of nowhere, stand still for 15 seconds and then run off again. They are all curios what you are doing and how it works, especially older people and some even start turfing after a while.