The next Rule of the Asshole is to learn how to really speak your mind. Losen up, there's absloutely nothing to worry about when your an Asshole. Let your Confidence Shine.
Now generally if your an Asshole you will avoid dealing with other people. Other people tend to really piss the Asshole Population off. But every once in a while your bitch ex-wife or dumbass kid that isn't even yours forces you into a public situation. In that instance it's time to shine you no good son of a bitch.
The best ways to tick people off is by focusing on whats really important to them and spitting right on it. Religion, Politics, and Family are the three main keys to work on.
If a fellow co worker would like to talk about his Political views then you must disagree with everything he says.
If he supports Pro Life then call him a Pussy.
And if he introduces you to his kids ask him if his sons gay, say he has a homolike voice. As his daughters if shes the same girl he paid for a handy last night in the Wal Mart Parking Lot.
This will generally enrage your peers, to go a step further have a few beers and get shitfaced. Feel some girls up and cuss out your boss. Reveal secrets you've heard in the past such as affairs and pregnencys.
Never stop voicing you opinions, don't fear the consequences, and treat others the way a true Asshole would treat them.