One of my fave posts so far:
Welcome to Plus Club.
#1 - The first rule of Plus Club is, you do not talk about Plus Club.
#2 - The second rule of Plus Club is, you DO NOT talk about Plus Club.
#3 - If someone +mentions you, invites you to hang out, shares a Spark with you, you +1 them.
#4 - Put people in relevant Circles.
#5 - As many Circles as you like.
#6 - No Facebookers, no Buzz commoners.
#7 - Plus threads will go on as long as they have to.
#8 - If this is your first night at Plus Club, you have to post.