Listen to this cat literally say "hello" over and over again

Listen to this cat literally say "hello" over and over again
Hurro? Hurro? Anybody home? Oh, you're in the next room? Hurro?! It sounds like he's very sad but I swear he just loves the sound of his own voice sometimes. Sometimes I'm on the couch watching tv and he's behind the couch hurro-ing and I'm like, dude, I'm right here.