After visiting an ailing aunt who she knows has never said a mean word in her life, writer Lauren Daisley realizes that just maybe she could try to do the same thing. So she decides to pursue this experiment for a month with the following rules,
(1) I cannot say or write anything that could be construed as not nice.
(2) I do not have to school other people on being kind.
(3) I am allowed to tease in a good-natured way.
And she discovers that it does change her life.
http://www.salon.com/life/feature/2011/03/28/my_month_of_no_snark/index.html