I think it is good to clearly separate working and socializing activities. Working in an open work space where anyone can socialize with you at any time can be

I think it is good to clearly separate working and socializing activities. Working in an open work space where anyone can socialize with you at any time can be very distracting for work that requires you to focus. In my opinion having a private office and separate watercooler/coffee/socializing space would be ideal. That said, having that separate desk to indicate that you're working on something that is not so susceptible to distraction might be enough.