You can expect a large crowd and a lot of noise during the petting zoo phase of the evening. I've been to about 5 of these, and I tend to get there about an hour early, hang my jacket on a seat up front, then go play the petting zoo guitars in peace and quiet, before the multitude arrives. You can also expect a very fun evening with great music, lots of information, and some give-aways of strings and t-shirts. Bring a pen to fill out the coupon.