[clivehawkins]

I'd go for the name tags. It's a business english class, so chances are they already have or will at some stage go to conferences and seminars where name tags are the norm.

With my adult groups I remind them that they are adults! That is to say I promise them more freedom and less 'control' because they won't act like kids. This is a bit of psychology that works most of the time - it's my 'nice' way of telling them that I expect good behaviour.

If you have the class 'boss' ie the one who thinks he knows everything and wants to tell you what to do, jump on it right away. It's less painful at the beginning when you still don't know each other so well. If you let it go on you lose control of the class.

In any case, good luck. These types of course are great fun. Teaching adults is enjoyable in other ways.