Well from my experience bob, it's that you CAN'T make a blind man see, now matter how much you want him to, no matter how much they want to, no matter how much there friends want them to, a blind man just CANNOT see!
Only one Man i know can fix this, Jesus Christ!
I know that if they come to us with a question, that the Lord is guiding them to us, and that He has given us the answer we need to provide them, or else they wouldn't have come our way.
If we go out about, trying to convert the uncurcumsized ears of those who are blind in trying to defend the Word of our Lord, we will only end up doing more harm, but cutting off there ears as peter did with the sword in trying to defend the Word. This will leave them worse off then when they started! Only the healer, can truly heal them.
Perhaps prayer when they come to us, and focusing on our Lord always when we speak, is the best thing we can do to those who are truly seeking.
Remember we are to be ready to give an ANSWER to THOSE WHO ASK, not shove it down there throats cutting off there ears as christendom is doing and as i have selfishly done in the past and rescently as well. The beast gets the best of me sometimes, Lord forgive me i try ><!
Perhaps you have some other suggestions you could share with us.
God bless!
Alex