hobnob vs work the room

hobnob

verb
  • To associate with in a friendly manner, often with those of a higher class or status. 

  • To drink together. 

noun
  • A drinking together. 

  • An informal chat. 

adj
  • On friendly terms; in friendly association. 

work the room

verb
  • To interact enthusiastically with the attendees at an event, by moving among them, greeting them, and engaging them in conversation. 

  • To interact with one's audience, taking cues from its reactions and adapting one's performance or words to elicit the audience's attention and enthusiasm. 

How often have the words hobnob and work the room occurred in a corpus of books? (source: Google Ngram Viewer )