Hi Lori,
I am glad you know about the
Disney's Rider Swap option. This makes it fun for the entire family. Since one of you will always be with your three year, here are options while waiting for rest of the family.
You can go to the exit of the attraction and watch for their pictures to come up on the screens. This is a fun way to see your family. The pictures can be quite funny.
You are also near Sunset Farmer's Market which is the perfect spot to have a snack. Also, near Rock 'n' Roller Coaster starring Aerosmith, there is a band that sometimes performs which is always entertaining as well.
Also, by Rock 'n' Roller Coaster is a temporary tattoo stand which you can make your three year old into a rock star.
Wishing you a magical vacation!
Beth