How much do you do this when you're on a night out? And I'm not talking about people of the opposite sex that you're trying to get into bed.

For some reason I've found myself doing this more and more recently and a friend pulled me up on it in front of all my other friends when we were sat in a pub on saturday night. People then started piping up and genuinely aggrieved that I spent time talking to strangers who i'd probably never see again.

So, do you tend to chat to random people on a night out or do you spend the whole time with your friends?