Use a shoe lace and tie your ankle or wrist to your partners body and start to move around or sit up and down together as you keep your eyes closed. try to work together so you keep a certain amount of tension between you using the shoe lace so you grow more aware to recognizing others movement and intentions through contact. Move further after you do this to one person with eyes open and one with eyes closed and evade being hit by others walking towards you or swinging a club at either of you by sensing through this contact that you have where is it better to be to avoid being harmed. another drill is to tie the wrist and ankle or the same side together and defend yourselves as learn to communicate your intentions without talking. The purpose of the drill is more than just movement or play, remember the objective also and keep a clear head.