It all depends on what you want them to know. You are in control of your personal information, guard it as you would your financial details.

A couple of years ago, my aunt started saying I was like a closed book. In other words, I told her very little about what I was doing, how I was feeling, etc. That's changed recently as she's stopped saying this and other issues have given us a better relationship.

I realise it's different when talking to work colleagues who also met socially. Its' a great suggestion to talk about tv/movies/hobbies. May be better to steer clear of personal issues.

Don't want to appear OTT here but my ex once said to me, "you have two ears but only one mouth, use it wisely". I've always remembered that advice when tempted to divulge something to relative strangers.