Yessss, jam session was excellent! We had a group of other people who were using the space just before us and some of them stayed back and ended up playing with us as well.
I turned out to be the only drummer so only played that, but got some compliments on it which I was stoked about! Especially given that the other people were waaaay above my level in terms of guitar or bass skills, haha. They were actually playing some songs, none of which I had the remotest idea of how to play on drums and some of them which I hadn't even heard, but I was able to put down a good beat at the right speed and it worked out really well. We even ended up doing some bluesy-sounding thing at the end where I did a shuffle beat and it sounded fantastic!