Sometimes vocal and motor self-stimulatory behaviors can interfere with learning and community inclusion. Knowing the function(s) will determine your intervention as well as replacement behavior(s).
Moving to a new home or a new city can be stressful for anyone. For children with autism, change can be particularly anxiety-provoking. This answer provides strategies that may help manage their anxiety.
Need help teaching your child about not talking to strangers and other social safety concerns? Check out the resources in this post.