For myself, listening with my "heart" rather than with my ears is what defines the difference between advice and support. "Advice" is so different from support, though...

Something *I* wrestle with is knowing when to NOT give advice. Some people don't need "answers" at a given point in time. All they need is a heart felt "I understand." Some people don't even want to hear that you've been in the same place they are at a given time. That one is tough! I get angry at myself when I blow that one.