Originally Posted by: KasperowBut I won't expect anything.

That's the best attitude to go in with. Just go, be loose, and whatever happens happens.

It's actually recommended that you just hang out at an open mic/jam the first time to get a feel for it. Each one is run differently and can have a different vibe.

Not saying you'd do this, but just be aware that the rudest thing you can do is go, perform, and leave immediately afterwards. If everybody did that, the last person to perform would have no audience...which isn't fair. I don't think you have to stay to the very end, but stay for a while. I for one enjoy staying to the end. It's happened a couple of times that some of the most enjoyable performances were the last ones.