Being Lonely in a Crowded Room

Every been in a crowded room and felt alone. Today I did. I went to an activity for my ward, made sure I went an talked to people and yet eventually became excluded from everyone as they chatted with family and friends. I sat there wondering what I could do different (and I kept thinking of chocolate-see previous post) I really didn't have anything to say to anyone. I have nothing in common with most. I don't want to talk about work, counseling, my troubles and so forth. What do I say to someone without it being about me. I find myself sitting in the background wondering how to come out to the front, not to be the center of attention, but just not to be in the background. I was ready to leave before Steve. I wonder what I can do differently.