It's not really an issue anymore for me to be honest.
It used to be though, i used to be very reluctant to tell people, almost as if they were going to judge me bad because of it. Now though i do not make a point of telling people, but i do if the conversation ever comes up about religion or spirituality.
I often discuss this with one of my best friends, who used to be a jw too. Whenever we go out there is a group of us. Nobody amongst this group know of our jw past, apart from one and he was shocked. They just think we are old mates, which we are at the end of the day. Funny thing is though it's not that we hide it or ashamed of it, it's just that it doesn't come up in conversation, it's just not an issue anymore.
People that i do tell tend to be curious about it.
Paul