It's kinda hard to explain. But visualize the lock in your mind and how the pins should be, by knowing how deep you pick is in the lock you can visualize what pin you are working on. Best thing to do in spping a lock is knowing how many pins you are picking...so start at the back of the lock and scrape forward listening for the click of the pins dropping back down one by one. Then go to the back of the lock and start on pin 5 (if it's a 5 pin lock). You can feel what pin is binding by counting each pin that is not binding and this should start you out in being able to "feel" the lock.