Reply To: Calling co-workers by first name

Surnames names are a thing of relatively recent history, only in the last several hundred years. For thousands of years prior, people only had ONE name, and that was the one by which they were known. Unless someone is a rov or king or something else of any import, I certainly see no reason not to call a co-worker by his or her first name, if they are agreeable to that. I personally prefer to be called by my given name by people who know me very well.