[Thank God for the video, otherwise her voice would've made him jump just like the others. And it sounds like Katniss is genuinely worried, so it's time to soothe her worries quick.

So Teddy appears, a placating, if somewhat sheepish smile on his face as he holds up his hands, as if to say that there's no reason to be alarmed. Probably for her sake and his own as well.]

I-It's okay, nothing happened. We were just playing a game, and we didn't know, uh... that would happen. But everything's fine, really. No one's hurt or anything.