Respect others. Don't smoke in public places Second-hand smoke in China is a very big problem.
Loads of children and women are exposed to second-hand smoke in public places, and at home, because their smoking friends or relatives are not aware of its harm.
Even recent ban to smoke in public places didn't make much difference, as smokers continue to smoke in buses, trains, restaurants, etc.
There obviously is lack of social campaigns to let people know how harmful sacond-hand smoke can be.