Polished is correct about the spotting being more prevalent in Latin dances. But you should keep your attention on something other than your partner's face or shoulders during VW. Something behind him, as belleofyourball suggests. The points are a good way to stop the rotation -- man points his foot to a side, lady points her foot behind her, while looking back at that foot. You do it in rhythm to the song and dance, and do a series of them, but keep moving in some fashion. They are actually nicer and more elegant in the Waltz. The VW can tend to be a little fast and can make those moves seem rushed -- especially if the man is not doing with nice lines to keep it looking smooth and elegant.
Good luck with the VW, it remains one of my struggles after all these years. But it is fun, and no one says you have to do it for an entire song.