How to be a better friend
I'm not an expert. These are thoughts from an ordinary girl.
-Ask them how they are every once in awhile, out of the blue...just for no reason but a checkup.
-Spend quality time with them. That's time you give them. It's not really for your benefit. It means some sacrifices on your end.
-Don't judge them. Assume you probably don't know what's going on. If you do judge them, do it cautiously.