The thing after joining toastmasters is that you start observing people making speeches or giving training.
You begin to notice how many "ah's" or "erm's" that your pastor makes at the pulpit. You realize that one of the pastor's likes to use "You know?" quite a lot of times.
You watch interviews with world leaders and study how they structure their replys.
You count the number of times they make eye-contact with the audience.
You start wondering how bored the audience is becoming and whether the speaker is winning or losing the audience.