Info graphics
Here are some improv concepts I have tried to represent visually

This graph explains how the longer you delay in defining something, the more awesome it will have to be to satisfy people.
An example of this would be the TV series ‘Lost’. After Five seasons of not defining what is going on, you know the ending will either have to be phenomenally good, or disappointing.
I’ve also found that the other end of the scale is also true. When doing corporate work I’ve found that people will find anything amusing if it is said immediately.

Another chart I call upon from time to time. This is to say that the more you commit to a character the more you look like a dork (my students know this), until you commit enough to push through the other side of dork and into awesome (my students don’t always know this).
A lot of people seem to think that if they signal that they’re not really trying then they won’t look like such an idiot. However, it’s this very thing that makes them look stupid. Our only hope for survival is to grit our teeth and push on through to awesome-town.

This is me trying to represent the format of the Harold visually.