Laughter really is a common denominator that helps break the ice and build bridges.

Of course in today's hyper politically correct society, sometimes we're hesitant to tell a joke, because the Left Coast/New York/DC Beltway speech censors even want to define what is acceptable humor. (Unless, of course, you're trying to demean a conservative) 

So, be brave, strike a blow for freedom, and start a conversation with a joke .  

Here's one to get you started.

An Elderly man in Queensland, Australia had owned a farm for many years. In the back of the property he had a large pond. It was properly shaped for swimming, so he fixed it up nice with picnic tables, benches, a barbecue and some apple and peach trees for use by his family. One evening the old farmer decided to go down to the pond, as he hadn't been there for a while, and look it over. He grabbed a twenty liter bucket to bring back some fruit. As he neared the pond, he heard voices shouting and laughing with glee.  As he came closer, he saw that there were a bunch of women skinny-dipping in his pond. He made the women aware of his presence, and they all went to the deep end.  One of the women shouted to him, "We're not coming out until you leave!"  The old man frowned and answered, 'I didn't come down here to watch you ladies swim naked.  Holding the bucket up he said, 'I'm here to feed the crocodile...'  Old men can still think fast.