Some people are fast talkers. They like to talk with the same speed as they think. In the process fast talking people end up mumbling a lot, shortening sentences, rounding off parts and skipping words. Their diction is poor and therefore they are difficult to understand. The problem is that fast talkers usually have a lot to say, which is why they are in a hurry to express themselves and more often than not what they want to share is actually useful. However, if no one understands what they have to say or if they mix it up with all sorts of irrelevant data or going off- tangent too often, then listeners get bored quickly or misunderstand them.
This exercise helps such individuals to practice slowing down their rate of speech and improve their diction. The exercise also helps to practice listening skills as delegates have to pay full attention to what has been said.