This talk of David Evans (@DavidEvans66) was one of my favorites at the Agile Testing Days 2011.
I will only list some things not to find on the slides in this article, and then provide a link to the slides at the end of the article, as they are really self-explaining (imho).
Schlagwort: learn
In this talk, Rob Lambert (@Rob_Lambert) presented different ways to increase your awareness and tries to give an answer to the headlining question.