-Don't get mad, or yell. That won't make your friend want to talk, nor will it make them feel any better. I made this mistake. I advise you not to.
-Ask them if they are ok. If they reply 'no' ask 'what's wrong?' It may be nosy, but it does show concern.
-In some cases it would be nesscary to worry, some cases it wouldn't be. I worried, because I cared. Take with path you choose on this one.
-Let them lean on your. Be there. This is probably the best thing you can do if they ALREADY have professinal help.
-If your friend hasn't told a professianal, or a counsler, I suggest you tell someone. Outside help is always good.
Note: Jade,feel free to add to this. These are some things I belive helpful. Correct me if I'm wrong.
~Abby