Wrong?

People tell me that making friends with new people is fun and easy.  How come then every time I try to talk to a new person or get closer to an old acquaintance I feel like they think I am boring, wrong, or just don't like me after only half of a conversation.   It always seems to me that people are always judging and dismissing me off one conversation, one facet of my personality.  It makes me question everything about myself and everything I do.  I don't know what I am doing wrong.  It shouldn't be wrong to be yourself.