1) Only argue about facts, not opinions.
2) Only argue if you're positive that you're right, and you have proof from valid sources to back up your claims.
3) If they won't admit that you're right, even after you've provided solid proof (facts, not opinions) keep pressing it until they give up.
4) If the other person turns out to be right, admit that you're wrong, and don't bring it up again. Chances are, if you don't make a big deal out of it they'll forget you were wrong.
5) Exception to rule #4: If the other person is an idiot, has a low self-esteem, or they seem unsure of whether or not they're wrong, keep arguing even if they're right. By constantly insisting that you're right, they'll lose confidence in what they were saying, and they'll eventually give up.
Testimonials:
"You know, when you argue, you're always right." -Brittany
"It's sad when people try to argue with you, because you're always right." -Evangeline
"Ugh! Why do you always have to be right? Actually, wait... You are right. Hmph!" -Kara
