I moved to Rancho Mirage and went to kindergarten (and the rest of elementary school) at Washington Charter School, complete with an obnoxious theme song that was written while I was there. I don't remember many specifics about who were my best friends, but the girl hugging my shoulder in this picture is Cassie, who I became better friends with during high school.
On another note, because this post is short, it's interesting how quickly little kids can make friends with each other. When I was a kid I felt like age was the only thing I had to have in common with a person for us to have fun together. Add some arbitrary toys or a make believe game like "Lost Kids," (which my cousin Connor and I made up) and you've got hours of enjoyment.