As a frequent traveler, be optimistic. In fact, passers-by won't accept leaflets when they are handed out, because they think it's very troublesome and everyone is too busy to listen to you. But after more experience, you have learned the method, and some people are still willing to listen to you. First of all, smile in a gentle tone and say, good morning, I'm sorry to lend you some time. Then tell him something to say on the leaflet, and finally say, you can come and have a look if you are interested. Thanks for listening to me. This will be easily accepted by passers-by