Always support your friend. If your friend is racist, sexist, irrational, violent, dishonest, loud, presumptuous and abusive, become yourself racist, sexist, irrational, violent, dishonest, loud, presumptuous and abusive also. You must agree with your friend and provide the favorite suggestions of behavior. Never list your principles. Do your best to have none but present yourself as having the ones of your friend. Boast stories about your daring behavior, no matter how fictional they are, as long as you provide a lot of detail. Believe in your fiction to the point of actually look sincere. Make part of the groups and communities your friend loves most. In case you get exhausted of trying to be somebody else and rape your remaining ethics, remember the torture of being lonely. That not being enough to boost you, consider getting another best friend forever and start from scratch.