Yes, you do look like a librarian!
Regarding the Facebook group, No, I don’t look like a librarian!…. Yes, you do look like a librarian! I am not joining the group – because I think really I do not look unlike a librarian, and I think most of the people who joined that group look like the librarians that they are. And there is nothing wrong with that! We look smart! We are smart! We look approachable and helpful! We are approachable and helpful!
Don’t be ashamed of what you are!! Embrace it!