If she's mad at you, first make sure you know why, ask her or if she won't talk to you ask one of her friends. Then talk to her ALONE, tell her you sorry for whatever she's mad about, and say you hate seeing her upset, and comfort her. Good luck! :)
Apologize, mean it. Admit to being an idiot and hope for the best. Never do it again.
With sincerity. How else.
Apologize and don't do it again.
apologize
Apologize. The end.
If she says she's mad, she's mad. If she says she's NOT mad, she's mad. If she has thrown anything at you lately, she's mad. If you did something stupid, she's mad. If she's not talking to you, she's probably mad and wants you to apologize to her.
cry. its a winner.
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Apologize for what you did. If they still are mad, then they are not a good friend
Wait a little while, apologize, and work something out with her. Do not get mad or have an attitude though, else she'll get pissed.
The best way to apologize to a friend that is mad at you is to do it in person. That way the friend can see that you are genuinely sorry.
He will probably like it.