I would like to think I am a good actor with a great public mask to put on when I go to the outside world. However, if that person can sense that "there is something wrong with me", then I have not blocked impressions from this person. I would find that the person' s body language and speech patterns would help determine that I would be able trust this person for #2. The speech pattern would be things like tone and volume of voice, choice of words, rhythm of the words in the sentences, and whether there are any pauses. But if one is agoraphobic like me, there's less of a chance of accidentally meeting someone who could sense anything about me.