That would be "con mèo của tôi thấy tôi". "My cat sees me" (thấy) has a sense of surprise. As if your cat just noticed you and didn't realize your presence. "My cat looks at me" (nhìn) implies that your cat knew where you were and wanted to turn to look at you. I hope that helps!
Does this guy speak normal speed for a native Vietnamese speaker, or does he speak slowly?