Start off by saying:
I know negotiating can be cantankerous sometimes so I would like to start with a gesture.
(Pull out 2 packs of BS Cards and present a pack to the other side)
You get 3 BS cards and I get 3 BS Cards. I am hoping between 6 BS Card's we can come to an agreement. Do you agree or do I need more packs? (Smile)
PS... this is an icebreaker. It is meant to get a smile and start a negotiation on an even playing ground. Let me know how it worked for you.