You oldies take advise and remember how it was when you started at these sessions... Were you lucky enough to have everyone stop and make way for you? were you accepted into the session with open arms?

It took time of course. It still can take time for me to feel really comfortable but I no longer want to dive in but like to take some time trying to understand the session, the people and to work my way in gently.

At a one off session, you don't have that time though so perhaps there is a case for some effort being made to pull others in?