It's not a slight distinction, the smirk is missing and is replaced by the '/s' It awfully similar to humming or 'pretend percussion with your fingers' of the

It's not a slight distinction, the smirk is missing and is replaced by the '/s' It awfully similar to humming or 'pretend percussion with your fingers' of the song you're hearing in your head. It's basically spot on for you but most of the time no one else has a clue what the hell are you trying to pretend to play