In 90 minutes you will have
Understood what gets in the way of saying 'no' and how to deal with it.
Been introduced to the 3 types of 'no': the straight 'no', the soft 'no' and the pre-emptive 'no'.
Practised saying 'no' in a number of hypothetical situations.
Considered a real situation where you find it difficult to be negative and agreed how you can overcome the barriers so you can say, 'no' delicately but confidently.

