Basically, what I learnt was that we should be asking ourselves questions whenever we are thinking about something. When we speak to others, we should be asking questions from ourselves and answer them. I don't mean asking questions from others.
Specifically Yes/No questions:
Did I enjoy watching how David Cameron speak? yes I did very much.
Will I think and use the technique in the future? I will try and I think will do.
Did I master the technique? not yet but will do.
Do I enjoy writing blogs and my thoughts about the subjects I find useful? yes indeed.