Yes, Elliot is at POFQ, Weds-Saturdays, 8:30-Midnight. Here's a link to a great POR/POFQ website, and it's kept updated. http://www.portorleans.org/scatcats.php
Yes, it's a mostly-open location adjacent to the lobby. I've seen families, seen kids, seen people at tables with food from the food court. It's very casual. And Eliot loves to meet and talk with all his guests. He's great!
She doesn't actually have to get anything. I just saw him tonight. There were a couple dozen people, mostly families with kids (this was about 9:00 - I'm sure as the night goes on, it becomes mostly adults). Most people had their mugs with them that they filled up as needed. Very interactive show. It's in such a small space, that it's almost impossible to be there and not have him interact with you at some point.