LOL @ the cheetahs comment!
Actually the bicycle is suspicious because I don't think he was pedaling yet somehow moving in a moderate speed, perhaps there was a wind propelling him
Perhaps we can interview the walker and ask if he was enjoying the view or in fact power walking.
But seriously, seriously... they obviously had a conversation that sounded like a normal conversation. And also the laughter :26-:27 sounded natural. Get better investigative skills