I've had them say to me on fb (haven't run into any at the shops yet thank goodness), "I hope you return to Jehovah." And I tell them, "I never left Jehovah [true, cuz you can't leave someone who doesn't exist], I just left an unloving organization that claims to represent him."
Df, da or inactive jws who are still believers I tell: I just don't believe it anymore..." And they're cool and move on. It's only the 'spiritual' ones who've been phobia conditioned to believe you're the spawn of Satan.