Hi breakingfree.
Welcome! glad you poked your head in to say 'hi' yep, it's really late...or early here, i should be asleep!
i have survived several visits. if there is no way to wiggle your way out of the visit...then just be cool. they can't read your mind.
be cordial and accommodating but vague. no specifics. allow them to "encourage" you. if they ask if there is anything they can help you with...just say, no not really. or you could say...we are going through a rough time, or have some personal issues...whatever feels comfortable. if they continue to probe and ask why you haven't been attending meetings say something about you needing time to sort things out, you don't find the meetings enjoyable anymore or something general. if they still keep on...and ask if you still think "this is jehovah's organization" just say you have your doubts. that's where you stop. they can't do anything with it. you can't be disfellowshipped for doubting.
they will read a few scriptures and look concerned...say a prayer. have coffee and pie ready for a treat (kind of a distraction...makes them think you are still OK) thank them for their concern.
a few of these kind of meetings and eventually you will be taken off the 'visit' list.
