All of your advisors can make faces to show what mood they're in. For example, if you have a successful city, all your advisors will be smiling. On the other hand, if your city is unsuccessful, your advisors will have sad faces.
 

Advisor	Normal	Happy	Sad	Scared
Mortimer Green
Moe Biehl
Constance Lee
Karen Frawl
Maria Montoya
Randall Shoop
Gus Oddman