I just started a new group last week. I'm a very shy person as well. I just try to show my appreciation for other people opening up and try to relate to their feelings. I also made sure to let the group know I suffer from social anxiety...badly. I didn't necessarily feel included. I felt like I dropped in to a cliche. But no one made me feel unwelcomed. It's just me being new. I'm going back again and hopefully it will feel a little better. My T says to give it four times before making a decision.