I agree that this isnt a place for chit-chat. So you wont be lonely as everyone else is watching the movie clips. I love scifi! its the quietest restaurant in disney! Nice and cool too. Perfect break from the parks. We always liked the food. Picnic burger and is yummy and oreo shake is outstanding!!
No doubt your 6 yr old will want to be the "driver", so it'll probably be your DS6 in the front with an adult, and the other adult in the back. At the end of your meal, I believe they give the driver a drivers license or a ticket (or something like that, sorry i cant remember even thou we've been there so many times!). This theme is so perfect for a 6 yr old boy! he'll love it!