If you have selected to add an approval button to your video, you can keep tabs on who has approved your video in the following ways:
Note: in all these cases the 'thumbs up' icon indicates approval.
1. Just hit the 'Video info' button when in the video playback screen as shown here:
2. Hit the little information icon in the video thumbnails list page as shown here:
3. Click any of the little icons on the left side of your video in the playback screen.
Wipster will also send email notifications and activity feed notifications when videos are approved. For more on that see this article.