How do I know if these are tics or normal behaviour?
Tracy, some of these are fairly typical autistic behaviours, like toe walking, mimicking, repetitive things like the somersaults. And typically, autistic people (which includes people with Asperger Syndrome) have some tics as well, which rarely are so numerous or so pronounced that there will be a separate diagnosis of TS as well (obviously, I am one of those rare cases).
But you're right to have it checked out. Either way, a lot of these behaviours are not displayed by your typical eight-year-old child. But I wouldn't worry too much, if it's TS or AS (or both), that wouldn't be the end of the world (well, that's my opinion, anyway).
German citizen, married to a Canadian for 28 years, four daughters, one son, eight grandchildren (and one on the way).