try taking a few self working routines with you, as your a cardie I'm sure you could have a stack in your deck and do a packet control as you shuffle, off the top of my head maybey a setup for oil and water (red black seperation its sometimes referd to) or a double top card change

, then steer the conversation to a trick you saw on telly last week that when something like this que the cards...........
this will give you an opener and get the audience primed and at the same time give you a needed boost and in the unlikely event that the self worker goes wrong you can say maybey you remembered it wrong and go on to something else by way of an experiment then if that dosn't pan out your audience will already be primed to accept it its called the sympathy complex also refered to as the stockholm syndrome in abductions.
for me it would go like this:-
i saw urigeller do something with a key last week and I'm sure he was cheeting....let me demonstrate....haunted key set up...my slef worker.
then go on to a false transfer to a bending key routine and so on, try it see if it helps.
you can always stop people in the street and say can i show you something, but that usualy only works when you have a camera crew with you.
