Once you are in contact with him aim to end it on the one (blending with his movement) rather than applying your idea of what should happen.
Take a chair and slowly sit down and get up from it as you maintain your eye sight level and as comfortable as possible. Have a partner take a pencil or a pen and as you sit down and get up he will place obstacles in your way and you will have to keep moving and avoid getting lead into your system. continue to sitting down and have your partner press the tip of the pencil to you and you have to move to survive without pressing yourself onto the tip. If you can use more than one type of chair it will help you learn to be aware of the openings you have in this position we take and to move better from them. Change places and repeat the drill only now close your eyes and let your limbs move with the natural movements of your body to help you gain knowledge of your partner’s movement and intention. You will note that if you have no contact and no eyesight of him than he is free to operate without your knowing and you may get a sharp surprise.