Oh gosh, don't feel unwelcomed! It's definitely intimidating to get immersed into a group, you can also start a group of your own and hang out there. I have a group, but I never have anyone to talk to in it since I disappeared for a few months... People in the group threads are usually really friendly; it's just that the size of the well established threads can be intimidating at first.

Oh the doctor set is incredible. I was so excited to see that sort of thing in the store.

I don't really want anything else. I'm just bored and looking for people to talk to.