Personally I can't think of anything simple that would falsify all the evidence for an old earth and evolution.
I guess personal revelation would help... but even if God stated talking to me, I'd be strongly inclined to think that I was insane. I'd definitely be asking him the sort of questions that creationists don't have good answers for... like why do it this way? (I don't think I'd be satisfied with he answers Job got).
Ah yes... evolution is obviously lies! No one with any education really believes it!
Yet you can't come up with actual examples to demonstrate holes in the actual theories and science.

There is no actual science in evolutionism - that's why the meaning of the term's been under attack for so long.
What I can do, is take any evostory - any - and find and explain the trick behind the falsehoods. This is not a matter of intelligence, but integrity and sometimes patience. ANYONE can do it.
Evolutionism is spam. How many lies have each and every one of us witnessed? There is no need to dig through the entire pile. If even one story had merit, there'd be no need for the rest.
Rather than talking trash, you're welcome to name your favorite evostory. Odds are it's already been shot down, but if it hasn't, so what? You and I both know there's nothing which withstands scrutiny in your religion.
I think you'll find that most people who accept evolution also are very dubious about stories about aliens visiting.
I think you underestimate the intelligence of the readership. It's not creationists hyping space aliens.
NASA, NSF, DOE and the California Institute of Technology have already committed to
finding them - not to finding out whether or not they exist, but to
finding them.
Pale Blue Dot II: Abstracts: Origins Program
PlanetQuest: Exoplanet Exploration
Origins Education Forum
And

DOE killed this formerly good link:
Redirection Page | U.S. DOE Office of Science (SC)
A real scientist could not be sure what he would see until he had some observations to go on. These people "know" they're going to observe all sorts of stuff, including the formation of stars and planets, specifically Earth-like planets, and "life signs" coming from them.
$$$$ ka-ching !!!
(Personally I think there are probably aliens out there in the cosmos... but there are none visiting the earth, demonic or otherwise).

That's the way. Stay non-committal until word comes down from the priesthood mandating the belief.