Perhaps the safest tactic to take would be to just act interested in what they have to say, explaining that I am examining and re-evaluating how I feel about ID/creationism/evolution, and I would like some information explaining their positions and ask if they could provide me with some clear cut explanations of their position...
In that way, I would not have to be lie, or actually present my position, I could just present myself as someone who is searching for answers...and actually I am always searching for answers, so nothing I say will be a falsehood...
Too obvious. Either that or they will try to hit you up for the $69.95 DVD.
"and ask if they could provide me with some clear cut explanations of their position..."
Do you expect to get answers before or after the offering plate gets passed?
You don't see the duplicity in your approach do you?