Question

how to aware people to not to stick handbills on public property

Answer 1

We can make people aware by telling them not to stick handbills on the public property which is actually spoiling the city's beauty. Or convey this through advertisements, in newspapers and the Internet.

Answer 2

We can stop this by telling the people to put any advertisement in internet or in the newspaper.As putting handbills in the public areas wall or pilars it means that it is creating bad image of the city or spoiling the beauty of the city.