Children with Autism tend to want to "go it alone' thus, engaging in fun and sensory friendly activities with another child may be helpful. When they spend time together with adult supervision they will slowly learn social skills and interpersonal skills.
As each child is different, you will first need to determine what the children like to do. Does the child prefer soft toys or those that are shiny. Do you think that games such as the Wii would be successful for the children who like gross motor activities. Or maybe playing catch with a ball? Time in a park climbing or going down a slide?
If they like soft plush, consider having social time with puppets. If they prefer shiny maybe a set of trains or cars can be used for playtime.
The key is to have children inter-relate to each other for short periods of time. Set your goal for five minutes at first.
Keep a chart of the activities and time together that was successful and when (if) the play time seemed to get upsetting for one child or another.
Louise Sattler, NCSP
Nationally Certified School Psychologist