Don't start right out with ID. Start with one of there more respectable areas first to keep them from suspecting.
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...