So, you know those locks that have the barrel and the 4 numbers. Well, you zero out the lock and start at one end. Go through each number while keeping tension on the lock. You’ll feel, when you are at the right number, a little “give”. That one number down. Now, you move to the next until you release the lock. Due to my dyslexia, I forget which end to start with so you may have to start at the other end. It takes some practice, but you’ll get better.