I've left only mentally, for now.
Since then, I just don't take field service and meeting attendance seriously anymore.
I now return holiday greetings when said to me. Also, I've sent b-day cards to siblings and other people. Plan on giving x-mas cards to co-workers and the siblings that aren't in the WTBTS. Also, I say things like "bless you" when someone sneezes that I can hear it.
Those above are pretty good improvements thus far. However, I still have many prejudices do to my upbringing. Some may never go away, but I try my best to keep an open mind.
DY