I love to do this!
I get a book i am interested in (this is important) prepare, preview, photoread, let the information settle for at least 20 min, grab a friend helps (one thats a good listerner) and start talking about the book, GO FOR A WALK WHY YOU ARE DOING THIS first try for an overview, feel free to take tangents as often as you like, play with it. You will here yourself saying some cool stuff, you will think you are cleaver, until later you read what you thought was one of your deepest profound thoughts. HEHE its funny.
Play around with the material you read.
Good luck
Oh and P.S. there is neurological evidence to show that motor maps and cognitive maps are intricatly linked. (thats why its important for you to walk)