Working in pairs, sitting on the chairs exactly as before, you comment on your partner exactly as in Simple Repetition. The difference, in this version, is that each of you is now free to change the comment if and when you see your partner doing something significant. For example:
A1 You have dark hair.
A2 I have dark hair.
A1 You have dark hair.
A2 I have dark hair.
A1 You touched your hair.
A2 I touched my hair.
A1 You touched your hair.
A2 You sat forward.
A1 I sat forward.
Each comment is repeated continuously, as in Simple Repetition, until something happens to change it. You will also notice that all comments relating to physical actions are made in the past tense, so that they never stop being true. At this stage, the comments all have to be physical, factual and irrefutable.
You must repeat every comment made about you at least once and preferably more than once. You should not look for things to comment on in your partner just in order to escape repeating. The comment should only change when one of you notices the other doing something very definite.
However, you should also make sure that you notice and comment on significant things