In groups, they now role play a head office meeting in which a committee decides whether to let staff dress informally or not. While they are doing this, the teacher goes around listening. If he hears that students use 'will', 'might' or 'won't' perfectly correctly, he moves on to the next section of the book.
If students either don't use these verbs correctly or if they hardly use them at all, he gets them to open the book and do exercises 1 to 3. He might then finish the sequence by having students write from the head office to the local bank manager telling him or her what they think about informal clothes and what they are going to do about it.