One of the common practices that Pete Bissonette has metioned previously is to PhotoRead a book; then next day he would PhotoRead it once again prior to activation.
Additionally one of the suggestions to increase your spontaneous activation is to PhotoRead 5-10 books a day:
Quote from Pete's prior posts:
"...- PhotoRead 5-10 books a day for a month or two. This is a big commitment, but those who do this have many difference experiences with activation including spontaneous activation, weird cooincidences, dreaming about the contents of a book or applying the principles from a book, opening books to exactly the information you are looking for, and so on. It is a great confidence builder. That's how I started out, and I highly recommend it. Activate one book a week--but PhotoRead 5-10 a day to see what happens--even if it is the same book over and over.."
Alex