Gossip is a disease.
It is contagious and can spread destructively.
Good people that we are, the aim for truth is of prime consideration. So how do we know that what we are telling is actually the TRUTH?
Simply follow Socrates' Triple Filter.
#1 Certainty - Are you sure that what you are telling is the absolute TRUTH?
#2 Goodness - Is the information something GOOD?
#3 Usefulness - Will what you will tell be of any use to the one you are going to tell it to?
If the answer to all the questions is a NO, here's the conclusion: IF YOU ARE NOT SURE ABOUT THE INFORMATION AND NEITHER IS IT GOOD NOR USEFUL---WHY TELL IT IN THE FIRST PLACE?