[selmat]

Very interesting reading about this topic is in book Pragmatis by William James.

Its philosphy so its not easy reading for relax.

From critical thinking point of view, try to read something about rhetoric. If you know some approaches, try to get in practice and challenge some speakers.

Start with your friends and familly. But I have to warn you...you will not be favorite partner for discussions anymore :-) so don't overdo.