Some interesting excerpts from Chapter 8 - Introduction to Usability Test Facilitation : Paper Prototyping: The Fast and Easy Way to Define and Refine User Interfaces - by Carolyn Snyder
"A test facilitator is like a duck—serene on the surface duck—serene on the surface, but paddling like heck underneath."
On thinking aloud : "If someone went through their daily life explaining their every action, we'd question their sanity."
"the married people syndrome" - aka - people talking in half sentences. Now this is totally something that I need to observe.
"Once you explain something, you forever lose an opportunity to understand the problem."
"Strive for progress, not for perfection." - I think this is a quote that one can adopt for life too. Perhaps it is this gradual progress that ultimately leads to perfection.