Hi there and welcome to NeuroTalk.

I'm not quite sure what you mean when when you say you'd like to join a goup. At first I thought you meant a forum, but I see you've already posted in the RSD Forum, so that can't be it.

If you mean a social group and if it's not a private group, then I think it's just a matter of dropping by and saying hello.

Please explain what group you mean, and then hopefully we can help you better.