Talk to much

I'm new to the Dev world and I have experienced some interesting stuff. We work in a Scrum Agile environment and everyone is pretty cool and good at their job. One thing I do not understand is why some people talk so much.. We have a QA person and that is all she does. I mean she does work stuff and gets stuff done too. It just seems she gossips alot and never stops! I mean I hear her over the wall and it always starts out as a spec or error question, then it evolves to a gossip session. I did not think in development people had this kind of time to waste. I can see why it would happen in a sales or market environment but not IT. Does any one else deal with this type of stuff at work.? What do you do to handle it? Do you approach the person about it? I just think this type of activity spreads discord and problems. OMg she is doing right now! LOL