33, as a CTer, your best bet is NOT to roll eyes and change subject.
Rather, you should realize it's possible that point is a mistake on some secretary's part - concede that point to Oz - then move on to one other point which may prove obama wasn't born here.
Don't spend hours arguing something once you realize it's a lost point. Remember, you don't have to prove every lie - just ONE. If there's one official lie in the record, then you win. You don't have to find 100 mistakes.
Start with the book mistake - the pic of grandparents with the photosho lines - get Oz to concede it's probably a photoshop. Oz, you game? From there, 33, you as him to surmise the motivation for such a faked pic. Then you give your theory, and how it fits into the bigger lie.