There may be no official rule book for being a liberal, but that doesn't mean there aren't rules. There are actually quite a few rules liberals go by and the more politically active liberals become, the more rigidly they tend to stick to their own code of behavior. These rules, most of which are unspoken, are passed along culturally on the Left and viciously enforced. Ironically, many liberals could not explain these rules to you and don't even consciously know they're following them. So, by reading this article, not only will you gain a better understanding of liberals, you'll know them better than they know themselves in some ways.
1) You justify your beliefs about yourself by your status as a liberal, not your deeds. The most sexist liberal can think of himself as a feminist while the greediest liberal can think of himself as generous. This is because liberals define themselves as being compassionate, open minded, kind, pro-science and intelligent not based on their actions or achievements, but based on their ideology. This is one of the most psychologically appealing aspects of liberalism because it allows you to be an awful person while still thinking of yourself as better than everyone else.
2) You exempt yourself from your attacks on America: Ever notice that liberals don't include themselves in their attacks on America? When they say, "This is a racist country," or ",This is a mean country," they certainly aren't referring to themselves or people who hold their views. Even though liberals supported the KKK, slaughtering the Indians, and putting the Japanese in internment camps, when they criticize those things, it's meant as an attack on everyone else EXCEPT LIBERALS. The only thing a liberal believes he can truly do wrong is to be insufficiently liberal.
3) What liberals like should be mandatory and what they don't like should be banned: There's an almost instinctual form of fascism that runs through most liberals. It's not enough for liberals to love gay marriage; everyone must be forced to love gay marriage. It's not enough for liberals to be afraid of guns; guns have to be banned. It's not enough for liberals to want to use energy-saving light bulbs; incandescent light bulbs must be banned. It's not enough for liberals to make sure most speakers on campuses are left-wing; conservative speakers must be shouted down or blocked from speaking.