Hi there.
I recently had my ADOS test, a lot of people here have too, but since no one else has replied I thought I would.
For adults and adolescents it's the ADOS Module 4.
For most people I've spoken to, and myself, this included:
-Making up a picture out of foam pieces
-Describing what's happening in a picture book
-Describing a where's wally type picture
-Demonstrating how I brush my teeth with imaginary toothbrush, toothpaste and sink
-Questions about relationships, social life and emotions
-Making up a story out of 5 random objects
Looking back now I can see also that they tried to engage me in small talk throughout the test as a form of social press, this is to see how you respond to social cues.
They're testing for 2 main things, social and communication. You're scored on both of these and they make up your diagnosis (or not)
I hope that helped.
I'd say just be yourself without worrying about how you're acting or what the result will be, that's the best way forward.