Movement after surgery

I’m 2 weeks post surgery for Weber B fracture, a plate and 5 screws. Got my cast off yesterday and now in Moonboot NWB for 4 more weeks. I’ve heard that the hardest part is actually getting movement back/rehab afterwards. Should I be doing small movements now in Moonboot or taking it off to do some minor movements? Or better to keep it completely still until Moonboot comes off? Surgeon was pretty unhelpful with this. Any experiences shared are appreciated