Is This Anxiety?

When i'm in a social enviornment like a gathering, or party and there are strangers I feel like I want to be loud and active but I don't because I don't know what to say to or how to say; to have a conversation, and not be boring. I always feel like w/e I say i'mnot connecting, and when I do feel like i'm saying something right, it's when they're responding postively w/ talk or laughter. So basically if I don't have there positive attention, I feel low and boring, and not interesting. Sometimes I feel like by being quiet, i'm bringing down the party cause I relate my anti socialness to when no one is really getting loud or anything. It's weird I feel like i'm acting cool though by not associating with people, if I consider them 'losers' but I feel low when it's people I see as 'cool'. Is this anxiety or something else, will the linden method work for such a case. Any suggestions?