How do you go about asking people what their problems are?

I made these two posts a few days ago:

GOLD - Save Yourself Years Of Frustration; It Worked For Me!
GOLD - Save Yourself Years Of Frustration; It Worked For Me!

But I feel this question is deserving of its own...

How do you go about asking people what their problems are?

from How do you go about asking people what their problems are?