My guild asks new people to introduce themselves. But don't leave it at that - find a table to sit at, introduce yourself to everyone there, ask them lots of questions about themselves, what they like to sew, etc. I also walk around to different tables to visit with people, even if I don't know them. Volunteer to help on committees, take things to show and tell. get involved. Hopefully you will find a fun guild to join. They can be a lot of fun.