Thank you both :).
As far as I know all of the dogs will be on lead & it has been suggested that people bring X pens or crates for their dogs to hang out in (Amber will have her Cabana crate

). The past two times that a dog has approached Amber uninvited & started in on some enthusiastic sniffing she promptly sat down. Is this indicative of anything?
I will do my best to take things easy with her & not have her get overwhelmed. And I'll be sure to pack plenty of yummy treats for distraction purposes.
I really hope that Saturday goes well & that she has fun!
Nina