If you can leave without any drama, that is always best. In reality, it is hard to do if you are one that needs to be yourself 100%. That was me, and still is.
I walked away in late 2005, (last meeting was Dec. 25, 2005). I tried just simply being honest with TTATT with friends and family, and it just led to them avoiding me. Since I wanted to not worry about looking over my shoulder, I DA'd in 2007. There was not much to lose anyway, since most did not talk to me anymore anyway. I kept one JW friend who never followed the shunning rules and we are still good friends to this day.
I recently tried to reach out to another friend that I also care quite a bit about, but once again, because that friend mattered, I believed being honest with her mattered. It ended up in me being shunned by her.
The point here is what it comes down to is you need to ask yourself, how important is it for you to be yourself? If this really matters to you, then any friends you might keep by faking it somehow are not worth it. This is one of the most painful lessons I had to learn in life.
d4g