I do both and am currently serving as an elder. I pretty much go to meetings and just look at the speaker, pretend that I am listening. I comment once during each meeting so as not to cause suspicion. I also take every chance I get not to go, fake illnesses or working late but that has to be limited.
As for ministry I also try to "fake it" as much as possible. Fortunately my wife is on board because she doesn't like the ministry so we tend to work as a family, do a couple calls, go to Dunkin Donuts and go home.
The most difficult part for me is to sit in elders meetings... OMG they are so power hungry, egotistical, and controlling. I have to drift off to a different place so I dont freak out and blurt something "apostate" out.
I have not chosen an easy path, I am slowly working on my wife for an exit in the hopefully near future.