Lingering in the doorway, Kevin started humming a cheerful tune again, keeping his voids peeled for Carlos.

He would probably have been whistling instead of humming, if he could whistle. But he couldn't whistle. You couldn't, either, with those teeth.

He took a step into the doorway, looking this way and that...but he hadn't noticed Carlos yet. He actually didn't look like he was trying too hard to hunt him down - his air was casual, like someone who thought he spotted a friend on the street and was half-trying to say hello.