How do you work jams?

I found a hoop buddy!! There's a lady in town who moved to my town just last year and after contacting her, she asked for my number so we could have a hoop jam:) I'm really excited, especially because I've never done that before, pole or hoop. I am nervous though, I mean.. How do they work? It would work a lot better if I went to her house, though we haven't spoken about anything yet.. I would just feel bad asking :( Do I stay there for an hour? Or until we just get tired? I'm so antisocial that it's hard to figure out what to do or talk a out with others. I'm terrible at small talk, I'm more of a listener:/ Would it be rude to ask to use her hoops, because mine is so beastly huge? 42" I also feel like I'll be boring and frustrating because I can't do too much other than waist hooping and maybe a couple basic off the body tricks. Maybe I'm just letting my anxiety get the best of me.. that tends to happen:( I apologize for going on, probably about nothing, really hahah.. But I do feel kind of better, reaching out to my pole sisters, and brothers..