I wish I was better at it!! But the session was a really useful one to demonstrate that honestly you don't actually have to be that good at it to be useful in a performing group.
It's funny because apparently this is an independent sort of bluegrass session, but literally everyone at it is a student of my teacher except one other lady who plays guitar and one other bluegrass banjo player who does his own thing, and so it has wound up kind of a banjo orchestra. We literally had five banjo players, and then my teacher was playing guitar with the other lady.
We also had one participant join us briefly on a smaller version of a five-string banjo, tuned to C instead of G, because he is about eight and can't actually reach the strings on a full-sized banjo. He was charming and reasonably skilled but had no notion of rhythm yet, which was fine for our purposes. I was only sorry that I don't know how to transpose yet on a banjo, so I couldn't be much use accompanying-- in my defense, nobody else knew either.