Act polite, and confident.
don't do stupid shit.
Less people will attack you.
I was never very worried about my char in w3, and i was always nice to people if they were nice to me. As a result i was never attacked by anyone.
People don't know anythiung about your stats, if you act confident they will assume, or maybe just speculate that you would be a hard fight.
Some people don't need more justification or attacking you than you being a dick- and the people who need less justification for attacking you will no matter how you act.
I don't get you silly people.