Hello everyone. I was just asked to perform at a gathering for a nurses graduation for about 100 plus people. I have never performed for that many before, I usually do crowds of 20 or less, and its usually at someone's home, so doing close up card tricks everyone can see and follow along. But what can I do for these many people. the one thing I thought of was a routine of John Bannon's called Nationwide, from his book Destination Zero, and a Do as I Do card trick, as well as maybe a routine I saw on Penn & Teller were cards are handed out to the audience and in the end the torn card each one withholds matches the other half they pick out of the cards that are left. I welcome any ideas along the lines of what could be self working or semi automatic.