Question

How do things get blown about on the moon if there is no wind

Answer 1

Things do not get blown on the moon. There is no air and hence no wind. This explains why footsteps of astronauts that have been there before still remain just as it was.
You can however set and object in motion by pushing or pulling creating momentum.
Since there is no air resistance it will move until inertia and gravity overcome its movement. Example of this movement can be of the flags on the moon which the astronauts set into motion.

Hope this helps!!

Answer 2

this is due to atrraction or repultion from any other source..
or any other cause would be..
that Newton 's first law