I think that you will find that need, more than anything else, will prompt spontaneous activation.

quote:
Originally posted by mgrego2:
I prepare, do a quick preview, and then PR. They recommend that you activate 2-3 of those/week. I've been trying to do probing questions of each book after I finish the PR, and then throughout the day (I'll just pause for a moment, think of a particular book, and then "wonder" about some aspect of the book). I haven't had any spontaneous activations that I've caught, but I'm hoping.