Place it right after the failed attempt or clumsy moment in your edit, so the name lands on the punchline. Follow it with a short reaction sound such as the Bruh Soundboard Button to let the room react, then cut to the group's laughter.
About this sound
This is a short Russian spoken rhyme, lasting about five and a half seconds, that calls Valera a loser and says he ate his fill of fleas. The chant-like delivery makes it feel cheeky, teasing and deliberately childish, like a playground taunt passed between friends. It lands as a light, silly jab rather than a serious insult, best for laughing at a friend named Valera.