Start standing and roll a few times in different ways. Now close your eyes before you roll and attempt the same rolls noting how you carry yourself differently and how your awareness changes. For example do you now protect the head with your arms as you get up or down? Do you move slower? Do you keep your limbs closer to you? One of the things worth trying is to roll with closed eyes between two standing people or an open door if you are learning by yourself. This is a good way to gain awareness of your entire body and form while moving.