Hi! When we went last year it turned out to be my son's birthday. When you call and make your dinner res. be sure to mention to them that it is his birthday.
For ex. we ate breakfast at the Whispering at WL and they put on a super, surprise, singing whoopla! It was great. Then they brought him out a very large dessert!
Also, the Plaza Rest. will bring out a delicious cake (for a small price) but it is soooo worth it. The waitress had everyone in the rest. sing Happy Birthday. FUN!!
Hope this helps...oh by the way....stop at the Main building in the MK to get a pin that lets everyone know that it is his birthday.