[Well, even with one eye it's hard not to notice and feel assured the doppelgangers are friendly when Carl sees one wave and the other one's expression soften.

His reaction to Kurt's clone poofing into existence in front of the camera is a wider eye and small jump, then a look of offence. He should have been used to people asking dumb questions about it now, but he hadn't quite gotten there yet. Kurt fortunately comes back on screen before he can say or do anything. So he lets his anger go, exhaling a deep breathe out.]

It's fine. Not the first time that's happened. I'm used to it. [That's a lie, but whatever. Ignoring it is the best option, he thinks.]

You'll let me know if they start acting any differently though, right? Just in case.