What are some fun things you can do with your ferret and how do you leash train?
Just let your ferret run around the house! Make sure it is
ferret-proofed though!! Get some toys for your ferret to play with,
you can also get a companion for your ferret {make sure he/she is
spayed/neutured}! Sounds like she is not used to the harness, start
with just a wearing a collar around the house first, then try to
harness, distract her or give treats to get her used to it before
taking her outside.