Internally, Falcon wants to roll his eyes. He knows what Personas are, thank you very much, but it's not like he can blame the other for explaining when his programming makes him act like such an ignorant fool.

... Still. It's for the best. Crow's clearly noticed something's up, and it's all he can do to convince his programming that it doesn't mean anything. It's fine. He's him, of course he'd be suspicious if a version of himself showed up acting like he's doing, but what's Falcon going to do about that?

He threatened and almost killed his younger self. If it were him, he'd be a lot more hostile despite Falcon's plattitudes.

Then, Crow mentions a demonstration, and suddenly, Falcon's programming runs into a snag. Crow's human. How can a human possible summon Personas in the real world? Falcon can because he's a weapon, but-

Give Shido the power? Keep up the act? Destroy enemy? Error- error- errorerrorerror-

Conflicting orders inside his head pile up, trying to overtake one another-

Until finally, one wins out over the rest, the only indication being his placid smile twitching ever so slightly.

"Ah, while I'm sure it would be interesting, it all sounds a little too fantastical to be true," his award-winning smile is wide wide wide, "I'm not here to roleplay superheroes and villains. So, thank you for the offer, but no thank you. Especially not if it is such a... disturbing image, as you say."

Keeping up the act of ignorant skeptic, then.