Work using one hand to rotate and drop your partner and to also guide him where you want using just one hand. Work from the front sides and back and remember to work in more directions than one at the same time. Later on work on doing this with leg contact or with no contact.
Sit or stand and have a partner place a hand or a stick on you and relax. Relax your body and note not to push where there is just contact. Now have your partner press to move you and you work to stay in place with the least amount of tension and your partner will ease off the tension without warning and swiftly and you need to avoid following him with your resistance in the same way you relaxed where there was just contact. This is a good drill to learn to tense and move a partner when he is already tensed up and to move a person with only a light contact if you feel where he is already open to this with low density.