when I have to be around a group of people I get extremely nervous and I don't know what to do or say, so I don't say anything which makes me appear to be very stand-offish, and most of the time those people will call me on it and say things like " you sure are quiet" or " smile" which makes me feel worse and more tense. please tell me how to be calm and actually initiate conversation with people or any advice at all. Thank you