What do you do to discover painpoints?

Among entrepreneurs it's common knowledge that we have to discover a pain point that people are feeling and create a solution that addresses it. This is simple if you are the one experiencing that pain - in that case you should know exactly what you need to solve it.

What's less obvious is how to discover other peoples' pain points. This often requires having an extensive network, being very attentive to people, and having the persistence to keep asking questions till you hit the root of a problem.

This is really tricky stuff and regardless of our experience level we can all benefit from hearing each other's strategies, so let's use this thread to share our strategies, ideas, and experiences regarding the discovery of pain points among our existing or potential customers!