I have in my life never been guilty of saying things I did not mean - my nature is to go straight to the heart and if often I fail in doing so for the time being, I know that Truth ultimately makes itself heard and felt, as it has often done in my experience.
Don't talk about it. The rose doesn't have to propagate its perfume. It just gives it forth, and people are drawn to it. Live it, and people will come to see the source of your power.
The inner voice is something which cannot be described in words. But sometimes we have a positive feeling that something in us prompts us to do a certain thing. The time when I learnt to recognise this voice was, I may say, the time when I started praying regularly.