Yeah, no. Clark might not know this guy but he knows a freaked out heartbeat when he hears it. It’s actually surprising how leveled the guy’s voice is when he’s obviously so uncomfortable otherwise.

“I’m going to raise you a couple inches, a little more at the time, just to prove it’s safe.” And he does just that. In truth he knows it’s 100% safe, and he’s done it before. So he’s simply doing it for Bruce’s benefit. After a couple minutes...

"The air is probably going to bother you a little bit when I actually take off towards Gotham. Let's go?"