I love how he sort of stutters whilst realising that the parents brought their kids to his gig, it's like his brain is overloading with ways to make them uncomfortable.
I sat in the front row at a very small gig he did in 2007 at The Hen and Chickens, and it was basically just a preview/test of new material he wanted to do at Edinburgh. He asked me what I did and I stupidly told the truth; I was in a cover band at the time. At the end of his set, he got me to use his mike and sing something to the audience. Fortunately, I figured he'd do that, and had something prepared (Johnny B. Goode, and it went ok). Afterwards I asked him for a photo together, and he was more than happy to do so, and really lovely to talk to.
His interaction with the family is probably the best a comedian will ever have with the audience but I also really like his interaction with the baker. Seems like they'd get on really well