Wiggling is actually defensive body language! Uromastyx usually do with in combination with inflating their body to make themselves seem bigger. They can do it when spooked or threatened. Wiggling is a Uromastyx’s way of saying “Leave Me Alone Like Right Now”. Their body language tends to progress as inflating->wiggling->hissing->tail lashing->biting.
Fruit Salad here tends to do it at…. everything. Especially me, however I’ve seen him do it at his food and sticks and rocks.
konekorambles 