What does it mean to be arrogant? we have all met people who seem to act better than other how do you and others react towards this person

just say it's your friend did it and you had no idea?

- "the basic difference between keywords and subjects is that subjects (or "subject headings") have been predetermined, while keywords have not. a keyword is an easy place to start because you can use any word that seems to fit your search; this is called "natural language" searching."