Need: Increasing the likelihood that students who watch/listen to classmates give speeches will use those watching/listening experiences to become better public speakers themselves.
Last semester, I wanted listeners to enhance their public-speaking skills by having them learn from their peers' speeches. To be clear, this is not about learning from the content of their peers' speeches, rather learning about the nature of good public speaking. This is different than something else I do, which is have 3 listeners provide feedback that is given to the speaker.
Enhancement: So I created a form that listeners use for their own benefit (see attached). They fill it out as they listen to their peers [clarification: but after a speech is over, not while a speaker is speaking, thanks Pete!], show it to me for participation-point credit at the end of a set of speeches, and keep it for themselves to use.
Results: Hard to measure, but informal qualitative analysis indicates that it produces a more productive learning experience for listeners by helping them get a clearer feel of what a good speech entails.