I would consider what it is you are afraid of people seeing in you. Think on why you're afraid of peoples judgments or opinions of you. They don't matter because they don't control or own you in anyway.
I think if you can allow yourself to realize that most people have inhibitions and inside they want people to like them then you aren't any different from others. That can give you some comfort in social situations, since many times people will over think about themselves in the moment, judging themselves and worrying.
Instead try to be the comfort to the other person and you'll find your inhibitions just disappear as your attention will be turned away from yourself and onto the other. Besides that EVERYONE likes a person who listens ; )
I used to have HUGE phobias of speaking to anyone, I just worked through it and even now when I catch myself becoming overanalytical and stuttering in conversation, I stop myself and realize that I'm thinking about myself when my attention should be placed on the other person I'm conversing with. The instant I do this it's as if all my inhibitions go away, you become more responsive, instead of filtering everything through your mind and trying to judge how the other person will respond. Get ahead of this way of thinking and just realize it doesn't matter, what matters is that you make yourself feel comfortable and try to bring this feeling to whoever you meet.