My moses love people, however, he really can't stand strong perfumes and any cologne that smell like alcohol. Honestly there may be a link to people she does not like, that you can't smell or hear or see. On the other hand, keep her constantly social, the more you remove your dog from the situation the worse over time it will become. Allow people she seems shy of to give her treats, keep them with you. In the dog world you know that the no talk to touch rule goes out the window when you have a big cutie like a pyr. Just bee progressive with her. She will come around