Working in corporate America, I can tell you that talking or gossiping in an office environment is not hte smartest thing to do. This is how rumors get started.
I never talk to close working friends within an office environment. Usually, I pull them aside in a private office to discuss issues that do not pertain to the general office personnel. Close working friends are those whom to share a friendship outside the work place. I do not like discussing my personal life in the office because of the acidic gossip that can develop.
I know gossip is fun especially when it is aimed at another person but as an adult, you have to act like one and not spread gossip. In addition, if you talk with your colleagues in the office, you better make sure you do not let any personal matter slip or talk about other employees because it will come back to bite you in the rear. I cannot tell you how many times I have had to counsel employees who gossipped (I heard he said she said this or that).
In the office place, employee hearing gets really good even when people whisper. Look at the rubber necks when you start whispering and you will know who are the ones most likely to gossip or spread whatever you talk about. So beware.