I guess it depends on the traits. Traits like honesty, being of good moral charachter, etc has not left. Not that those traits are exclusive to JWs.
But other little things are still with me that are pretty much exclusive to JWs. I haven't been able to say "Happy birthday" yet. I know that the JWs can't prove their anti-birthday policy biblically, but for my whole life I have never been able to say it or wish it or believe it. Now that I can, I still find myself hesitant to do it. I tend to shy away from political discussions, just as I did when I was an active JW. I have opinions now that I didn't have before, but I keep them to myself for the most part. So some things are still with me. I'm sure time will help fade these traits from my conscienceness.