I believe we encourage non-members to take classes. They can use the tools during class, but not without an instructor there. They can’t use the tools just with another member either. They are supposed to become members to use the tools. Some classes we explicitly prohibit non-members from taking, too.
In blacksmithing, we allow non-members to attend classes and use the tools when we are instructing, but otherwise they need to become members to have access to the tools.
I’m sure that you can bring someone to “assist” you but not to utilize the tools themselves.
I would schedule a class, invite your non-member friends and open it to other members, too. I’ve taught lots of classes with non-members in the class. Many times they sign up after the class.