Idea taken from krikketgirl, who in turn took it from <lj site="l

"I think we're all feeling a little down in terms of the amount of posting and commenting that is going on. Let's declare Tuesday, June 9 to be "LJ Participation Encouragement Day." My idea is that people who want to participate write an entry of some sort with the title beginning with an asterisk (*). When a person posts such an entry, the other people on their friends list who are also participating post a (meaningful) comment of some sort on that entry, with the end goal of commenting on everyone on their friends list who posts such a comment.

"And so the summary is that if you participate in this, you write an entry of some sort and purpose to comment on every person on your friends list who posts an asterisked entry."