In today's uni lecture, we practiced case taking utilising various questioning techniques, which reminded me of one of our discussions a few weeks back. So I just thought I'd drop one of the best interviewing techniques I've ever learnt, which may come in handy when probing potential clients/diving deeper with current clients:
T.E.D.S
Tell me.....
Explain to me....
Describe to me....
Show me....
It really does help extract more information and encourages them to elaborate.